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#882

From: "M. Iturralde-Vinent" <maiv_cu@...>
Date: Tue May 19, 2009 5:53 pm
Subject: Sitio actualizado hoy

Colegas
El sitio http://www.redciencia.cu/cdorigen/arca/index.htm ha sido actualizado hoy en las secciones de publicaciones, peces fosiles, vertebrados fosiles, vertebrados jur�asicos, limite Cret�cico/terciario. Usted encontrara un numero grande de pdf de trabajos antiguos y algunos ajustes de los textos.

Colleagues
The site http://www.redciencia.cu/cdorigen/arca/index.htm has been modified and updated today, specially the pages about KT boundary, fossils fish, fossil vertebrates, Jurassic vertebrates, and publications. You will find several pdf of old paper in all those pages.

Gracias / Thanks

M. Iturralde

�Obt�n la mejor experiencia en la web!
Descarga gratis el nuevo Internet Explorer 8
http://downloads.yahoo.com/ieak8/?l=e1

Reply | Messages in this Topic (1)

#883

From: "M. Iturralde-Vinent" <maiv_cu@...>
Date: Tue May 26, 2009 1:01 pm
Subject: New educational materials: IYPE Initiative

INICIATIVA PLANETA TIERRA
Hay nuevos carteles y folletos accesibles de la serie PROTEGE A TU FAMIALIA DE...
http://www.redciencia.cu/cdorigen/arca/protegefam.html

2009. Iturralde-Vinent, M.A. (Ed.) 2009. Protege a tu familia de la elevaci�n del nivel del mar y de oleaje extremo. N�mero 6. folleto / infograf�a

2009. Iturralde-Vinent, M.A. (Ed.) 2009. Protege a tu familia de los torrentes de monta�a, r�os crecidos e inundaciones. N�mero 5. folleto / infograf�a

2008. Iturralde-Vinent, M.A. (Ed.) 2008. Protege a tu familia de la erosi�n y p�rdida de suelos. N�mero 4. folleto / infograf�a

2008. Iturralde-Vinent, M.A. (Ed.) 2008. Protege a tu familia de los derrumbes y deslizamientos. N�mero 3. folleto / infograf�a

2008. Iturralde-Vinent, M.A. (Ed.) 2008. Protege a tu familia de los terremotos. N�mero 2. folleto / infograf�a

2008. Iturralde-Vinent, M.A. (Ed.) 2008. Protege a tu familia de las aguas contaminadas. N�mero 1. folleto / infograf�a

�Todo sobre la Liga Mexicana de f�tbol!
Estad�sticas, resultados, calendario, fotos y m�s:
http://espanol.sports.yahoo.com/

Reply | Messages in this Topic (1)

#884

From: "robert rogers" <rrogers@...>
Date: Thu May 28, 2009 12:42 pm
Subject: Honduras M 7.1 Swan Island Transform 05-28-2009

USGS info on quake at:

http://earthquake.usgs.gov/eqcenter/eqinthenews/2009/us2009heak/

------------------------------------

Dr. Robert Rogers

Assistant Professor

Geology Program, Department of Physics and Geology

California State University, Stanislaus

One University Circle, Turlock, CA 95382

Tel. 209 664-6691

email: rrogers@...

home: http://geology.csustan.edu/rrogers/

Honduras Geology: http://geology.csustan.edu/rrogers/honduras/index.htm

Reply | Messages in this Topic (3)

#885

From: Pascual Marquez <pascual.marquez@...>
Date: Thu May 28, 2009 3:29 pm
Subject: Re: Honduras M 7.1 Swan Island Transform 05-28-2009

pascual.marquez@...

Any risk of tsunami?, is the area prepared for this sort of event? is there a system of alert for tsunamis?, any studies reporting paleo tsunamis, anywhere in the area?
Please directo me to those sources.
Thanks

On Thu, May 28, 2009 at 8:12 AM, robert rogers <rrogers@...> wrote:

USGS info on quake at:

http://earthquake.usgs.gov/eqcenter/eqinthenews/2009/us2009heak/

�

�

�

------------------------------------

Dr. Robert Rogers

Assistant Professor

Geology Program, Department of Physics and Geology

California State University, Stanislaus

One University Circle, Turlock, CA 95382

Tel. 209 664-6691

email: rrogers@...

home:�http://geology.csustan.edu/rrogers/

Honduras Geology: http://geology.csustan.edu/rrogers/honduras/index.htm

�

Reply | Messages in this Topic (3)

#886

From: "robert rogers" <rrogers@...>
Date: Thu May 28, 2009 5:12 pm
Subject: RE: Honduras M 7.1 Swan Island Transform 05-28-2009

Definite risk. Quake happened on Swan Island transform (south side of 6 km deep Cayman Trough). Undersea landslide could have occurred (Tsunami watch (NOT WARING) was issued as conditions favorable (magnitude and water depth) for tsunami was present. Luckily it did not. See USGS site for details. Landslides and tsunami can also be triggered by aftershocks.

There is no local warning system. No paleotsunami studies along the north coast of Honduras.

Aftershocks are real and likely to happen for next few weeks. Heightened awareness should observed in coastal zones……. If a sudden low tide happens, it’s time to find high ground.

------------------------------------

Dr. Robert Rogers

Assistant Professor

Geology Program, Department of Physics and Geology

California State University, Stanislaus

One University Circle, Turlock, CA 95382

Tel. 209 664-6691

email: rrogers@...

home: http://geology.csustan.edu/rrogers/

Honduras Geology: http://geology.csustan.edu/rrogers/honduras/index.htm

From: carib@yahoogroups.com [mailto:carib@yahoogroups.com] On Behalf Of Pascual Marquez
Sent: Thursday, May 28, 2009 9:10 AM
To: carib@yahoogroups.com
Subject: Re: [carib] Honduras M 7.1 Swan Island Transform 05-28-2009

Any risk of tsunami?, is the area prepared for this sort of event? is there a system of alert for tsunamis?, any studies reporting paleo tsunamis, anywhere in the area?
Please directo me to those sources.
Thanks

On Thu, May 28, 2009 at 8:12 AM, robert rogers <rrogers@...> wrote:

USGS info on quake at:

http://earthquake.usgs.gov/eqcenter/eqinthenews/2009/us2009heak/

------------------------------------

Dr. Robert Rogers

Assistant Professor

Geology Program, Department of Physics and Geology

California State University, Stanislaus

One University Circle, Turlock, CA 95382

Tel. 209 664-6691

email: rrogers@...

home: http://geology.csustan.edu/rrogers/

Honduras Geology: http://geology.csustan.edu/rrogers/honduras/index.htm

Reply | Messages in this Topic (3)

#887

From: "robert rogers" <rrogers@...>
Date: Thu May 28, 2009 9:50 pm
Subject: Poster of the Honduras Earthquake of 28 May 2009 - Magnitude 7.1

Poster of the Honduras Earthquake of 28 May 2009 - Magnitude 7.1

http://earthquake.usgs.gov/eqcenter/eqarchives/poster/2009/20090528.php

------------------------------------

Dr. Robert Rogers

Assistant Professor

Geology Program, Department of Physics and Geology

California State University, Stanislaus

One University Circle, Turlock, CA 95382

Tel. 209 664-6691

email: rrogers@...

home: http://geology.csustan.edu/rrogers/

Honduras Geology: http://geology.csustan.edu/rrogers/honduras/index.htm

Reply | Messages in this Topic (1)

#888

From: "M. Iturralde-Vinent" <maiv_cu@...>
Date: Tue Jun 9, 2009 10:38 am
Subject: A new paper HP rocks, Motagua Fault Zone, Guatemala

FROM A GARCIA CASCO

Dear IGCP 546 colleagues:

A new paper on eclogites of the Motagua Fault Zone that may be of your
interest has been published:

Metamorphic reworking of a high pressure–low temperature mélange along the
Motagua fault, Guatemala: A record of Neocomian and Maastrichtian
transpressional tectonics.

by: Hannes K. Brueckner, Hans G. Avé Lallemant, Virginia B. Sisson, George
E. Harlow, Sidney R. Hemming, Uwe Martens, Tatsuki Tsujimori and Sorena S.
Sorensen.

Earth and Planetary Science Letters
Article in Press
http://dx.doi.org/10.1016/j.epsl.2009.04.032

Abstract
The Guatemala suture zone is a major east–west left-lateral strike slip
boundary that separates the North American and Caribbean plates in
Guatemala. The Motagua fault, the central active strand of the suture
zone, underwent two major collisional events within a system otherwise
dominated by strike–slip motion. The first event is recorded by
high-pressure/low temperature (HP/LT) eclogites and related rocks that
occur within serpentinites both north and south of the Motagua fault.
Lawsonite eclogites south of the fault are not significantly retrograded
and give 40Ar/39Ar ages of 125–116 Ma and Sm–Nd mineral isochrons of
144–132 Ma. Eclogites north of the fault give similar Sm–Nd isochron ages
(131–126 Ma) but otherwise differ in that they are strongly overprinted by
a lower pressure assemblage and, along with associated HP/LT rocks, give
much younger 40Ar/39Ar ages of 88–55 Ma indicating a later amphibolite
facies metamorphic event. We propose therefore that all serpentinite
hosted eclogites along the Motagua fault formed at essentially the same
time in different parts of a laterally extensive Lower Cretaceous forearc
subduction system, but subsequently underwent different histories. The
southern assemblages were thrust southwards (present coordinates)
immediately after HP metamorphism whereas the northern association was
retrograded during a later collision that thrust it northward at ca. 70
Ma. They were subsequently juxtaposed opposite each other by major strike
slip motion. This model implies that the HP rocks on opposing sides of the
Motagua fault evolved along a plate boundary that underwent both dip slip
and strike slip motion throughout the Late Cretaceous as a result of
oblique convergence. The juxtaposition of a convergent and strike slip
system means that HP/LT rocks within serpentinites can be found at depth
along much of the modern Guatemala suture zone and its eastward extension
into the northern Caribbean. Both sets of assemblages were exhumed
relatively recently by the uplift of mountain ranges on both sides of the
fault caused by movement along a restraining bend. Recent exhumation
explains the apparently lack of offset of surface outcrops along a major
strike slip fault.

Please contact the authors (Hannes K. Brueckner: hannes@...)
for pdf reprints.

very best
Antonio
----------------------------
Antonio Garcia-Casco
Dpt. Mineralogy and Petrology
University of Granada
http://www.ugr.es/~agcasco/igcp546/ "Subduction Zones of the Caribbean"

¡Obtén la mejor experiencia en la web!
Descarga gratis el nuevo Internet Explorer 8
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#889

From: "M. Iturralde-Vinent" <maiv_cu@...>
Date: Fri Jun 12, 2009 10:24 am
Subject: New paper on geochem of subducting Cocos plate

From A. Garcia Casco

Dear colleagues

The following paper may be of your interest:

Geochemical variations in the Cocos Plate subducting beneath Central
America: implications for the composition of arc volcanism and the extent
of the Galapagos Hotspot influence on the Cocos oceanic crust

by: Sadofsky, S; Hoernle, K; Duggen, S; Hauff, F; Werner, R;
Garbe-Schonberg, D

INTERNATIONAL JOURNAL OF EARTH SCIENCES, 98 (4): 901-913; JUN 2009

Abstract:
New geochemical data from the Cocos Plate constrain the composition of the
input into the Central American subduction zone and demonstrate the extent
of influence of the Galapagos Hotspot on the Cocos Plate. Samples include
sediments and basalts from Ocean Drilling Program (ODP) Site 1256 outboard
of Nicaragua, gabbroic sills from ODP Sites 1039 and 1040, tholeiitic
glasses from the Fisher Ridge off northwest Costa Rica, and basalts from
the Galapagos Hotspot Track outboard of Central Costa Rica. Site 1256
basalts range from normal to enriched MORB in incompatible elements and
have Pb and Nd isotopic compositions within the East Pacific Rise MORB
field. The sediments have similar Pb-206/Pb-204 and only slightly more
radiogenic Pb-207/Pb-204 and Pb-208/Pb-204 isotope ratios than the
basalts. Altered samples from the subducting Galapagos Hotspot Track have
similar Nd and Pb isotopic compositions to fresh Galapagos samples but
have significantly higher Sr isotopic composition, indicating that the
subduction input will have a distinct geochemical signature from
Galapagos-type mantle material that may be present in the wedge beneath
Costa Rica. Gabbroic sills from Sites 1039 and 1040 in East Pacific Rise
(EPR) crust show evidence for influence of the Galapagos Hotspot similar
to 100 km beyond the morphological hotspot track.

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#890

From: Jose Ramon Jimenez <jrjimenez59@...>
Date: Mon Jun 15, 2009 5:57 pm
Subject: (No subject)

Se presentan situaciones desconocidas para la poblacion de Tegucigalpa al sentir que ciudades a 260 km estan siendo actividas tectonicamente , no estamos acostumbrados y creemos que podriamos saber mas e investigar cuales son los riesgos reales actuales sobre un posible actividad telurica en las cercanias de Tegucigalpa. Actualmente actualizamos la valoracion catastral y es una condicion importante el efecto de estos movimientos en los modelos ensayados.

�Obt�n la mejor experiencia en la web!
Descarga gratis el nuevo Internet Explorer 8.br> http://downloads.yahoo.com/ieak8/?l=mx

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#891

From: Yasmani Ceballos Izquierdo <yceballos@...>
Date: Mon Jun 15, 2009 7:58 pm
Subject: old papers...

yceballos@...

Dear all,

Who can help me find these old papers(PDF or word):

Albert Wright and P. W. K. Sweet
The Jurassic as a source of oil in western Cuba
Bulletin of the American Association of Petroleum Geologists (July 1924),
8(4):516-519

Vaclav Housa
Neocomian rhyncholites from Cuba
Journal of Paleontology (1969), 43(1):119-124

Wendell Phillips Woodring
A Nerinea from southwestern Oriente Province, Cuba
Journal of Paleontology (January 1952), 26(1):60-62

Noel King Brown and Paul Bronnimann
Some Upper Cretaceous rotaliids from the Caribbean region [Cuba and Jamaica]
Micropaleontology (January 1957), 3(1):29-38

William Storrs Cole and Donald Winchester Gravell
Middle Eocene Foraminifera from Penon Seep, Matanzas Province, Cuba
Journal of Paleontology (September 1952), 26(5):708-727

William Storrs Cole
Lockhartia in Cuba
Journal of Paleontology (September 1942), 16(5):640-642

Jesus Francisco de Albear y Franquiz
Stratigraphic paleontology of Camagueey District, Cuba
Bulletin of the American Association of Petroleum Geologists (January 1947),
31(1):71-91

Paul Bartsch
Two new giant Scalas from Cuba
Journal of Paleontology (May 1941), 15(3):307-308

Horace Gardiner Richards
Pleistocene mollusks from western Cuba
Journal of Paleontology (April 1935), 9(3):253-258

Orville L. Bandy
Foraminiferal biofacies in sediments of Gulf of Batabano, Cuba, and their
geologic significance
Bulletin of the American Association of Petroleum Geologists (1964),
48(10):1666-1679

Cortez W. Hoskins
Molluscan biofacies in calcareous sediments, Gulf of Batabano, Cuba
Bulletin of the American Association of Petroleum Geologists (1964),
48(10):1690-1704

Louis Wilhelm Joseph Vermunt
Cretaceous rudistids of Pinar del Rio Province, Cuba
Journal of Paleontology (June 1937), 11(4):261-275

J. Whitney Lewis
Occurrence of oil in igneous rocks of Cuba
Bulletin of the American Association of Petroleum Geologists (August 1932),
16(8):809-818

Cecil Gordon Lalicker and Pedro Joaquin Bermudez y Hernandez
Some Foraminifera of the family Textulariidae from the Eocene of Cuba
Journal of Paleontology (March 1938), 12(2):170-172

Paul Bronnimann
Microfossils incertae sedis from the Upper Jurassic and Lower Cretaceous of Cuba
Micropaleontology (January 1955), 1(1):28-51

Frances L. Parker and Pedro Joaquin Bermudez y Hernandez
Eocene species of the genera Bulimina and Buliminella from Cuba
Journal of Paleontology (September 1937), 11(6):513-516

Martin Gerard Rutten
Rudistids from the Cretaceous of northern Santa Clara Province, Cuba
Journal of Paleontology (March 1936), 10(2):134-142

Donald Winchester Gravell
The genus Orbitoides in America, with description of a new species from Cuba
Journal of Paleontology (September 1930), 4(3):268-270

Thanks in advance.

Reply | Messages in this Topic (1)

#892

From: Yasmani Ceballos Izquierdo <yceballos@...>
Date: Tue Jun 16, 2009 2:51 am
Subject: link for old cuban papers

yceballos@...

Hola, estan todas menos las de Bulletin of the American Association of Petroleum
Geologists...

Saludos!!!


http://rapidshare.de/files/47550236/Publicaciones.rar.html


--------------------------------------------------------------------------------\
--------------

Albert Wright and P. W. K. Sweet
The Jurassic as a source of oil in western Cuba
Bulletin of the American Association of Petroleum Geologists (July 1924),
8(4):516-519

Vaclav Housa
Neocomian rhyncholites from Cuba
Journal of Paleontology (1969), 43(1):119-124

Wendell Phillips Woodring
A Nerinea from southwestern Oriente Province, Cuba
Journal of Paleontology (January 1952), 26(1):60-62

Noel King Brown and Paul Bronnimann
Some Upper Cretaceous rotaliids from the Caribbean region [Cuba and Jamaica]
Micropaleontology (January 1957), 3(1):29-38

William Storrs Cole and Donald Winchester Gravell
Middle Eocene Foraminifera from Penon Seep, Matanzas Province, Cuba
Journal of Paleontology (September 1952), 26(5):708-727

William Storrs Cole
Lockhartia in Cuba
Journal of Paleontology (September 1942), 16(5):640-642

Jesus Francisco de Albear y Franquiz
Stratigraphic paleontology of Camagueey District, Cuba
Bulletin of the American Association of Petroleum Geologists (January 1947),
31(1):71-91

Paul Bartsch
Two new giant Scalas from Cuba
Journal of Paleontology (May 1941), 15(3):307-308

Horace Gardiner Richards
Pleistocene mollusks from western Cuba
Journal of Paleontology (April 1935), 9(3):253-258

Orville L. Bandy
Foraminiferal biofacies in sediments of Gulf of Batabano, Cuba, and their
geologic significance
Bulletin of the American Association of Petroleum Geologists (1964),
48(10):1666-1679

Cortez W. Hoskins
Molluscan biofacies in calcareous sediments, Gulf of Batabano, Cuba
Bulletin of the American Association of Petroleum Geologists (1964),
48(10):1690-1704

Louis Wilhelm Joseph Vermunt
Cretaceous rudistids of Pinar del Rio Province, Cuba
Journal of Paleontology (June 1937), 11(4):261-275

J. Whitney Lewis
Occurrence of oil in igneous rocks of Cuba
Bulletin of the American Association of Petroleum Geologists (August 1932),
16(8):809-818

Cecil Gordon Lalicker and Pedro Joaquin Bermudez y Hernandez
Some Foraminifera of the family Textulariidae from the Eocene of Cuba
Journal of Paleontology (March 1938), 12(2):170-172

Paul Bronnimann
Microfossils incertae sedis from the Upper Jurassic and Lower Cretaceous of Cuba
Micropaleontology (January 1955), 1(1):28-51

Frances L. Parker and Pedro Joaquin Bermudez y Hernandez
Eocene species of the genera Bulimina and Buliminella from Cuba
Journal of Paleontology (September 1937), 11(6):513-516

Martin Gerard Rutten
Rudistids from the Cretaceous of northern Santa Clara Province, Cuba
Journal of Paleontology (March 1936), 10(2):134-142

Donald Winchester Gravell
The genus Orbitoides in America, with description of a new species from Cuba
Journal of Paleontology (September 1930), 4(3):268-270

Reply | Messages in this Topic (3)

#893

From: "Giuseppe Giunta" <giuntape@...>
Date: Tue Jun 16, 2009 7:43 am
Subject: Re: (unknown)

giuseppegiun...

Le aviso que tenemos una red interuniversitaria centroamericana sobre analisis de los fenomenos naturales de riesgo.

Esta red es entre la Universidad de Palermo (Italia) y la UES de El Salvador, la USAC de Guatemala y la UNAN-Managua.

Uds serian bienvenidos a conectarse con nosotros a traves de mio email para recibir noticias tecnico-cientificas (si posible).

Gracias y hasta pronto.

Giuseppe Giunta

Coordinador de la Red

Prof. Giuseppe Giunta
Dipartimento di Geologia, Universit�
Via Archirafi, 20-22
90100 Palermo (Italia)
tel +39 0916230337
cell. +39 3297979921
giuntape@...
http://www.dipgeopa.com/
http://www.dipgeopa.com/?structure=scheda&ID=12&lang=it

----- Original Message -----

From: Jose Ramon Jimenez

To: carib@yahoogroups.com

Sent: Monday, June 15, 2009 7:57 PM

Subject: [carib] (unknown)

Se presentan situaciones desconocidas para la poblacion de Tegucigalpa al sentir que ciudades a 260 km estan siendo actividas tectonicamente , no estamos acostumbrados y creemos que podriamos saber mas e investigar cuales son los riesgos reales actuales sobre un posible actividad telurica en las cercanias de Tegucigalpa. Actualmente actualizamos la valoracion catastral y es una condicion importante el efecto de estos movimientos en los modelos ensayados.

�Obt�n la mejor experiencia en la web!
Descarga gratis el nuevo Internet Explorer 8.br> http://downloads.yahoo.com/ieak8/?l=mx

Reply | Messages in this Topic (2)

#894

From: "M. Iturralde-Vinent" <maiv_cu@...>
Date: Tue Jun 16, 2009 12:21 pm
Subject: old cuban papers

Yasmani

Te veo que sigues activo. Todo ese esfuerzo hay que canalizarlo o tiene menos eficiencia de la esperada. Muy pocos cubanos tienen acceso a internet con suficiente velocidad como para bajar 2 Mb. Imagina 20 0 30. Yo estoy creando una comunidad virtual de Ciencias de la Tierra, donde uno de los temas son las publicacionbes cubanas, es decir, una biblioteca de trabajos de geologia y paleontologia de cuba, que puede incluir trabajos del caribe u otras regiones que impliquen a cuba. Al ser un sitio cubano se accede de afuera, pero sobre todo, los de aca pueden tambien llegar a el. Pero eso hay que organizarlo, de modo que este acompa�ado de un formato de busqueda por autores por temas, y por fechas al menos. Hay que hacer un listado de publicaciones por fecha, autores y temas, algo parecido al que tengo en mi sitio www.redciencia.cu/cdorigen/arca/piv.html

Saludos

M. iturralde

�Obt�n la mejor experiencia en la web!
Descarga gratis el nuevo Internet Explorer 8
http://downloads.yahoo.com/ieak8/?l=e1

Reply | Messages in this Topic (3)

#895

From: Jose Ramon Jimenez <jrjimenez59@...>
Date: Wed Jun 17, 2009 3:27 pm
Subject: Re: (unknown)

Estimado Profesor le agradesco su atencion al invitarnos a su red de investigacion, espero poder compartir informacion , no faltaba mas , agradecemos su cooperacion , es la primera ves que uso este medio despues de trabajar como tecnico desde la digitalizacion y ahora en la fecha en el dise�o de modelos fisicos en autocad y matematicos en excel para evaluar el catastro de nuestra ciudad natal de tegucigalpa, ayer tubimos una precipitacion de agua de 25 cm y el alcalde solicita sensores tectonicos para monitoriaer deslizamientos y dar se�al de aviso temprana de evacuacion, es interesante ver como el itinerario de estos eventos enriquesen la experiencia cientifica, gracias a este medio sentimos que no estamos solos , y que nuestro mundo aun hermoso da se�ales de padecer por nosotros mismos, desde nuestra ni�es sabemos que ver llover es se�al de alegria y tambien de tristesa por tanto sufrimiento de nuestros hermanos mas peque�os!!!!!!!!!!!!!!!!!, investigo actualmente un estudio que realiza la embajada japonesa (JICA) sobre gestion de riesgo en esta ciuadad , ellos tienen un plan de canalizacion de el rio choluteca que cruza este ciudad por un monto de 6.6 millon dolar americano

--- El mar 16-jun-09, Giuseppe Giunta <giuntape@...> escribi�:

De:: Giuseppe Giunta <giuntape@...>
Asunto: Re: [carib] (unknown)
A: carib@yahoogroups.com
Fecha: martes 16 de junio de 2009, 0:43

Le aviso que tenemos una red interuniversitaria centroamericana sobre analisis de los fenomenos naturales de riesgo.

Esta red es entre la Universidad de Palermo (Italia) y la UES de El Salvador, la USAC de Guatemala y la UNAN-Managua.

Uds serian bienvenidos a conectarse con nosotros a traves de mio email para recibir noticias tecnico-cientificas (si posible).

Gracias y hasta pronto.

Giuseppe Giunta

Coordinador de la Red

Prof. Giuseppe Giunta
Dipartimento di Geologia, Universit�
Via Archirafi, 20-22
90100 Palermo (Italia)
tel +39 0916230337
cell. +39 3297979921
giuntape@unipa. it
http://www.dipgeopa .com/
http://www.dipgeopa .com/?structure= scheda&ID=12&lang=it

----- Original Message -----

From: Jose Ramon Jimenez

To: carib@yahoogroups. com

Sent: Monday, June 15, 2009 7:57 PM

Subject: [carib] (unknown)

Se presentan situaciones desconocidas para la poblacion de Tegucigalpa al sentir que ciudades a 260 km estan siendo actividas tectonicamente , no estamos acostumbrados y creemos que podriamos saber mas e investigar cuales son los riesgos reales actuales sobre un posible actividad telurica en las cercanias de Tegucigalpa. Actualmente actualizamos la valoracion catastral y es una condicion importante el efecto de estos movimientos en los modelos ensayados.

�Obt�n la mejor experiencia en la web!
Descarga gratis el nuevo Internet Explorer 8.br> http://downloads. yahoo.com/ ieak8/?l= mx

�Obt�n la mejor experiencia en la web!
Descarga gratis el nuevo Internet Explorer 8.br> http://downloads.yahoo.com/ieak8/?l=mx

Reply | Messages in this Topic (2)

#896

From: "Mota, Byron" <bmota@...>
Date: Thu Jun 18, 2009 1:25 am
Subject: HONDURAS EARTHQUAKE MISSION

Ronaldo Luna, profesor en Ingenieria Geotecnica de la Universidad de Missouri llegara a Guatemala y a Honduras para realizar una investigacion preliminar sobre el terremoto en Honduras. Ronaldo es un particular amigo de Sam Bonis, quien se encuentra en USA imposibilitado de ayudarle.

Llegar� este jueves o viernes y necesitar� alg�n soporte en Guatemala y principalmente en Honduras, donde casi yo conocemos a nadie.

Podr�a alguien, por favor, ayudarlo, darle sugerencias o contactos, especialmente para Honduras?

Gracias.

Byron Mota

Sociedad Geol�gica de Guatemala

AVISO DE CONFIDENCIALIDAD: La informaci�n contenida en este correo
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Reply | Messages in this Topic (4)

#897

From: elisabeth espinoza <elisabethespinoz@...>
Date: Thu Jun 18, 2009 6:00 am
Subject: RE: HONDURAS EARTHQUAKE MISSION

elisabethespinoz@...

Hola Byron

Conozco dos sismologos aqui en Honduras (Tegucigalpa), podr�a contactarlos con Ronaldo Luna, tambi�n soy del �rea de geof�sica.

saludos

Elisabeth Espinoza
Escuela de F�sica UNAH

Ronaldo Luna, profesor en Ingenieria Geotecnica de la Universidad de Missouri llegara a Guatemala y a Honduras para realizar una investigacion preliminar sobre el terremoto en Honduras. Ronaldo es un particular amigo de Sam Bonis, quien se encuentra en USA imposibilitado de ayudarle.

Llegar� este jueves o viernes y necesitar� alg�n soporte en Guatemala y principalmente en Honduras, donde casi yo conocemos a nadie.

Podr�a alguien, por favor, ayudarlo, darle sugerencias o contactos, especialmente para Honduras?

Gracias.
Byron Mota
Sociedad Geol�gica de Guatemala

AVISO DE CONFIDENCIALIDAD: La informaci�n contenida en este correo
electr�nico es considerada privilegiada y confidencial, y debe ser
utilizada �nica y exclusivamente por el destinatario. Si usted no es el
destinatario, empleado o el encargado de llevar este correo al
destinatario, por este medio se le notifica que cualquier publicaci�n,
revelaci�n, copia, distribuci�n o cualquier acci�n que se tome o realice
en relaci�n con el contenido del presente correo, est� estrictamente
prohibido. Si recibe este correo por error, por favor notif�quenos, con
el objeto de arreglar la devoluci�n del correo, documentos e
informaci�n.

check out the rest of the Windows Live�. More than mail�Windows Live� goes way beyond your inbox. More than messages

Reply | Messages in this Topic (4)

#898

From: "Giuseppe Giunta" <giuntape@...>
Date: Thu Jun 18, 2009 7:42 am
Subject: Re: HONDURAS EARTHQUAKE MISSION

giuseppegiun...

Hol� Byron,

esta visita es muy importante y es necesario ayudar en lo posible a Ronaldo Luna.

Yo como tu sabes espero el ok para la mision proxima.

Te ruego de darme noticias sobre el desarrollo del trabajo, y de las conexiones posibles con el nuestro proyecto de la Cooperacion Italiana sobre peligrosidades naturale en Centro America.

un abrazo.

Giuseppe

Prof. Giuseppe Giunta
Dipartimento di Geologia, Universit�
Via Archirafi, 20-22
90100 Palermo (Italia)
tel +39 0916230337
cell. +39 3297979921
giuntape@...
http://www.dipgeopa.com/
http://www.dipgeopa.com/?structure=scheda&ID=12&lang=it

----- Original Message -----

From: Mota, Byron

To: carib@yahoogroups.com

Cc: samuel bonis ; rluna@... ; sgguatemala@yahoogroups.com

Sent: Thursday, June 18, 2009 3:25 AM

Subject: [carib] HONDURAS EARTHQUAKE MISSION

Ronaldo Luna, profesor en Ingenieria Geotecnica de la Universidad de Missouri llegara a Guatemala y a Honduras para realizar una investigacion preliminar sobre el terremoto en Honduras. Ronaldo es un particular amigo de Sam Bonis, quien se encuentra en USA imposibilitado de ayudarle.

Llegar� este jueves o viernes y necesitar� alg�n soporte en Guatemala y principalmente en Honduras, donde casi yo conocemos a nadie.

Podr�a alguien, por favor, ayudarlo, darle sugerencias o contactos, especialmente para Honduras?

Gracias.

Byron Mota

Sociedad Geol�gica de Guatemala
AVISO DE CONFIDENCIALIDAD: La informaci�n contenida en este correo electr�nico es considerada privilegiada y confidencial, y debe ser utilizada �nica y exclusivamente por el destinatario. Si usted no es el destinatario, empleado o el encargado de llevar este correo al destinatario, por este medio se le notifica que cualquier publicaci�n, revelaci�n, copia, distribuci�n o cualquier acci�n que se tome o realice en relaci�n con el contenido del presente correo, est� estrictamente prohibido. Si recibe este correo por error, por favor notif�quenos, con el objeto de arreglar la devoluci�n del correo, documentos e informaci�n.

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#899

From: Jose Ramon Jimenez <jrjimenez59@...>
Date: Thu Jun 18, 2009 6:54 pm
Subject: RE: HONDURAS EARTHQUAKE MISSION

Este es el nombre del gologo Marco Antonio Pineda Montoya su tel es 504 9852-9612 dicto ayer una conefencia en la universidad pedagofica con dos geografos mas , estubo muy interesante, dentro de nuestros alcanses lo que nos interesa de forma inmediata es el pronostco de un posible movimiento telurico que afecte la ciudad y su intensidad en las zonas aledañas a las tres fallas estudiadas por JICA (ayuda japonesa para el desarrollo) aqui en tegicigalpa. donde nunca hemos tenido un terremoto con daños muy significativos , muchas construcciones dentro del centro historico son de adobe , muchos palacios de 200 años de edad son estructuras no reforzadas sismicamente. espero este contacto le sirva. atte jrjimenez59@...

--- El mié 17-jun-09, elisabeth espinoza <elisabethespinoz@...> escribió:

De:: elisabeth espinoza <elisabethespinoz@...>
Asunto: RE: [carib] HONDURAS EARTHQUAKE MISSION
A: carib@yahoogroups.com
Fecha: miércoles 17 de junio de 2009, 23:00
Hola Byron

Conozco dos sismologos aqui en Honduras (Tegucigalpa) , podría contactarlos con Ronaldo Luna, también soy del área de geofísica.

saludos

Elisabeth Espinoza
Escuela de Física UNAH
Ronaldo Luna, profesor en Ingenieria Geotecnica de la Universidad de Missouri llegara a Guatemala y a Honduras para realizar una investigacion preliminar sobre el terremoto en Honduras. Ronaldo es un particular amigo de Sam Bonis, quien se encuentra en USA imposibilitado de ayudarle.

Llegará este jueves o viernes y necesitará algún soporte en Guatemala y principalmente en Honduras, donde casi yo conocemos a nadie.

Podría alguien, por favor, ayudarlo, darle sugerencias o contactos, especialmente para Honduras?
Gracias.
Byron Mota
Sociedad Geológica de Guatemala
AVISO DE CONFIDENCIALIDAD: La información contenida en este correo electrónico es considerada privilegiada y confidencial, y debe ser utilizada única y exclusivamente por el destinatario. Si usted no es el destinatario, empleado o el encargado de llevar este correo al destinatario, por este medio se le notifica que cualquier publicación, revelación, copia, distribución o cualquier acción que se tome o realice en relación con el contenido del presente correo, está estrictamente prohibido. Si recibe este correo por error, por favor notifíquenos, con el objeto de arreglar la devolución del correo, documentos e información.
check out the rest of the Windows Live™. More than mail–Windows Live™ goes way beyond your inbox. More than messages

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Reply | Messages in this Topic (4)

#900

From: Jose Ramon Jimenez <jrjimenez59@...>
Date: Thu Jun 18, 2009 6:59 pm
Subject: Re: old cuban papers

Es de gran ayuda este contactor es necesario mantenerlo vivo, he contactado a un grupo italiano Giusepe Guinta profesor de geofisica de palermo esta muy interesado en la falla motagua, seria de buen apoyo para la region .

--- El mar 16-jun-09, M. Iturralde-Vinent <maiv_cu@...> escribi�:

De:: M. Iturralde-Vinent <maiv_cu@...>
Asunto: [carib] old cuban papers
A: carib@yahoogroups.com
Fecha: martes 16 de junio de 2009, 5:21

Yasmani

Te veo que sigues activo. Todo ese esfuerzo hay que canalizarlo o tiene menos eficiencia de la esperada. Muy pocos cubanos tienen acceso a internet con suficiente velocidad como para bajar 2 Mb. Imagina 20 0 30. Yo estoy creando una comunidad virtual de Ciencias de la Tierra, donde uno de los temas son las publicacionbes cubanas, es decir, una biblioteca de trabajos de geologia y paleontologia de cuba, que puede incluir trabajos del caribe u otras regiones que impliquen a cuba. Al ser un sitio cubano se accede de afuera, pero sobre todo, los de aca pueden tambien llegar a el. Pero eso hay que organizarlo, de modo que este acompa�ado de un formato de busqueda por autores por temas, y por fechas al menos. Hay que hacer un listado de publicaciones por fecha, autores y temas, algo parecido al que tengo en mi sitio www.redciencia. cu/cdorigen/ arca/piv. html

Saludos

M. iturralde

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Reply | Messages in this Topic (3)

#901

From: "M. Iturralde-Vinent" <maiv_cu@...>
Date: Wed Jul 1, 2009 12:45 am
Subject: A new paper on Cuban structure

Dear colleagues:

The following paper has been recently publised:

Structure of the accretionary prism, and the evolution of the Paleogene
northern Caribbean subduction zone in the region of Camag�ey, Cuba.

Journal of Structural Geology. In Press, Accepted Manuscript, Available
online 18 June 2009.

by: VAN HINSBERGEN, D.J.J., ITURRALDE-VINENT, M.A., VAN GEFFEN, P.W.,
GARC�A-CASCO, A., AND VAN BENTHEM, S.

http://dx.doi.org/10.1016/j.jsg.2009.06.007

Best
Antonio Garc�a Casco

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#902

From: "M. Iturralde-Vinent" <maiv_cu@...>
Date: Wed Jul 1, 2009 1:49 am
Subject: New documentation on line /Nueva documentacion en linea

Dear coleagues/Estimados colegas
You may wish to visit, for new information avalilable, the URLs:
Hay nuevos materiales en pdf y otras informaciones en los URL:

Publicaciones en pdf viejas y nuevas http://www.redciencia.cu/cdorigen/arca/piv.html

Serie protege a tu familia de
http://www.redciencia.cu/cdorigen/arca/protegefam.html

Documentales de la naturaleza cubana a la venta
http://www.redciencia.cu/cdorigen/arca/documml.html

Tect�nica de placas del Caribe y Cuba
http://www.redciencia.cu/cdorigen/arca/tecpl.htm

Paleogeografia de Cuba y del Caribe (nuevos pdf y texto)
http://www.redciencia.cu/cdorigen/arca/pgegr.htm

Flora fosil de Cuba
http://www.redciencia.cu/cdorigen/arca/klfpt.htm

Peces f�siles
http://www.redciencia.cu/cdorigen/arca/pezfos.htm

Vertebrados f�siles de Cuba y del caribe
http://www.redciencia.cu/cdorigen/arca/pal.html

L�mite K/T en Cuba
http://www.redciencia.cu/cdorigen/arca/evekt.htm

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#903

From: "M. Iturralde-Vinent" <maiv_cu@...>
Date: Wed Jul 15, 2009 11:34 am
Subject: New information available

Dear colleagues

You may be interested in the following items:

Free Download:

Map Database for Surficial Materials in the Conterminous United Sta

Soller, D.R., Reheis, M.C., Garrity, C.P., and Van Sistine, D.R., 2009, Map database for surficial materials in the conterminous United States: U.S. Geological Survey Data Series 425, scale 1:5,000,000 [http://pubs.usgs.gov/ds/425/].

Just Published: SP316

SP316 - Palaeoseismology: Historical and prehistorical records of earthquake ground effects for seismic hazard assessment
Publication Date - July 2009, 332 pages
GSL Member price �45.00/$90.00

Earthquakes are one of the greatest natural hazards humans face. During the twentieth century alone, over two million people died during strong ground shaking, attendant fires, tsunamis and landslides. Palaeoseismology, the analysis of the geological record of past earthquakes, is today a critical field of research for a better understanding of earthquake processes, and a suitable assessment of the related hazards.

View New Publications from The Geological Society

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Reply | Messages in this Topic (2)

#904

From: "robert rogers" <rrogers@...>
Date: Fri Jul 17, 2009 4:53 pm
Subject: New Publication - A GPS and modeling study of deformation in northern Central America

Rodriguez M, DeMets C, Rogers R, Tenorio C, Hernandez D (2009) A GPS and modeling study of deformation in northern Central America. Geophysical Journal International

published online: 13 Jul 2009

http://www3.interscience.wiley.com/journal/122510988/abstract

We use GPS measurements at 37 stations in Honduras and El Salvador to describe active deformation of the western end of the Caribbean Plate between the Motagua fault and Central American volcanic arc. All GPS sites located in eastern Honduras move with the Caribbean Plate, in accord with geologic evidence for an absence of neotectonic deformation in this region. Relative to the Caribbean Plate, the other stations in the study area move west to west–northwest at rates that increase gradually from 3.3 ± 0.6 mm yr⁻¹ in central Honduras to 4.1 ± 0.6 mm yr⁻¹ in western Honduras to as high as 11–12 mm yr⁻¹ in southern Guatemala. The site motions are consistent with slow westward extension that has been inferred by previous authors from the north-striking grabens and earthquake focal mechanisms in this region. We examine the factors that influence the regional deformation by comparing the new GPS velocity field to velocity fields predicted by finite element models (FEMs) that incorporate the regional plate boundary faults and known plate motions. Our modeling suggests that the obliquely convergent (∼20°) direction of Caribbean–North American Plate motion relative to the Motagua fault west of 90°W impedes the ENE-directed motion of the Caribbean Plate in southern Guatemala, giving rise to extension in southern Guatemala and western Honduras. The FEM predictions agree even better with the measured velocities if the plate motion west of the Central American volcanic arc is forced to occur over a broad zone rather than along a single through going plate boundary fault. Our analysis confirms key predictions of a previous numerical model for deformation in this region, and also indicates that the curvature of the Motagua fault causes significant along-strike changes in the orientations of the principal strain-rate axes in the fault borderlands, in accord with earthquake focal mechanisms and conclusions reached in a recent synthesis of the structural and morphologic data from Honduras. Poor fits of our preferred models to the velocities of GPS sites near the Gulf of Fonseca may be an artifact of the still-short GPS time-series in this region or the simplifying assumptions of our FEMs

------------------------------------

Dr. Robert Rogers

Assistant Professor

Geology Program, Department of Physics and Geology

California State University, Stanislaus

One University Circle, Turlock, CA 95382

Tel. 209 664-6691

email: rrogers@...

home: http://geology.csustan.edu/rrogers/

Honduras Geology: http://geology.csustan.edu/rrogers/honduras/index.htm

Reply | Messages in this Topic (10)

#905

From: "robert rogers" <rrogers@...>
Date: Fri Jul 17, 2009 6:02 pm
Subject: Honduras Geology blog

http://hondurasgeology.blogspot.com/

This may fall into category of self-promotion, but it is easier to maintain than website and it is interactive.

Cheers, Rob

------------------------------------

Dr. Robert Rogers

Assistant Professor

Geology Program, Department of Physics and Geology

California State University, Stanislaus

One University Circle, Turlock, CA 95382

Tel. 209 664-6691

email: rrogers@...

home: http://geology.csustan.edu/rrogers/

Honduras Geology: http://geology.csustan.edu/rrogers/honduras/index.htm

Reply | Messages in this Topic (2)

#906

From: "David K. Evans" <dkevans@...>
Date: Fri Jul 17, 2009 8:05 pm
Subject: Re: Honduras Geology blog

dkevans@...

Sounds good to me...
All the best, dke
*************************
David K. Evans, Ph.D.
Professor Emeritus of Anthropology
Wake Forest University,
Winston-Salem, N.C. 27109
http://www.wfu.edu/~dkevans
http://www.thejudasbird.com
http://www.redatdawn.com

On 7/17/2009 2:02 PM, robert rogers wrote:

http://hondurasgeology.blogspot.com/

This may fall into category of self-promotion, but it is easier to maintain than website and it is interactive.

Cheers, Rob

------------------------------------

Dr. Robert Rogers

Assistant Professor

Geology Program, Department of Physics and Geology

California State University, Stanislaus

One University Circle, Turlock, CA 95382

Tel. 209 664-6691

email: rrogers@...

home: http://geology.csustan.edu/rrogers/

Honduras Geology: http://geology.csustan.edu/rrogers/honduras/index.htm

Reply | Messages in this Topic (2)

#907

From: "Giuseppe Giunta 072003" <giuntape@...>
Date: Sat Jul 18, 2009 4:19 pm
Subject: Re: New Publication - A GPS and modeling study of deformation in northern Central America

giuseppegiun...

Hi Rob,
this is a wonderful paper, which confirms several seismotectonic ideas and
opens many problems on the seismic hazard evaluation.
We are working on the tectonics of the area, and I would like to keep in
contact with you for discussion and improvement of our work.
I should go in Central America in the next November; I will inform you about
my agenda.
All the best.
Giuseppe

Prof. Giuseppe Giunta
Dipartimento di Geologia, Universit� di Palermo (Italia)
Via Archirafi 20-22, 90100 Palermo (Italia)
tel. +39 0916230337 - cell. +39 3297979921
giuntape@...

On Fri, 17 Jul 2009 09:53:09 -0700, robert rogers wrote
> Rodriguez M, DeMets C, Rogers R, Tenorio C, Hernandez D (2009) A GPS
> and modeling study of deformation in northern Central America.
> Geophysical Journal International
>
> published online: 13 Jul 2009
>
> http://www3.interscience.wiley.com/journal/122510988/abstract
>
> We use GPS measurements at 37 stations in Honduras and El Salvador
> to describe active deformation of the western end of the Caribbean
> Plate between the Motagua fault and Central American volcanic arc.
> All GPS sites located in eastern Honduras move with the Caribbean
> Plate, in accord with geologic evidence for an absence of
> neotectonic deformation in this region. Relative to the Caribbean
> Plate, the other stations in the study area move west to
> [UTF-8?]west–northwest at rates that increase gradually from 3.3 � 0.6
mm
> [UTF-8?]yr−1 in central Honduras to 4.1 � 0.6 mm [UTF-8?]yr−1 in
western
> Honduras to as high as [UTF-8?]11–12 mm [UTF-8?]yr−1 in southern
Guatemala. The
> site motions are consistent with slow westward extension that has
> been inferred by previous authors from the north-striking grabens
> and earthquake focal mechanisms in this region. We examine the
> factors that influence the regional deformation by comparing the new
> GPS velocity field to velocity fields predicted by finite element
> models (FEMs) that incorporate the regional plate boundary faults
> and known plate motions. Our modeling suggests that the obliquely
> convergent [UTF-8?](∼20°) direction of [UTF-8?]Caribbean–North
American Plate
> motion relative to the Motagua fault west of 90�W impedes the ENE-
> directed motion of the Caribbean Plate in southern Guatemala, giving
> rise to extension in southern Guatemala and western Honduras. The
> FEM predictions agree even better with the measured velocities if
> the plate motion west of the Central American volcanic arc is forced
> to occur over a broad zone rather than along a single through going
> plate boundary fault. Our analysis confirms key predictions of a
> previous numerical model for deformation in this region, and also
> indicates that the curvature of the Motagua fault causes significant
> along-strike changes in the orientations of the principal strain-
> rate axes in the fault borderlands, in accord with earthquake focal
> mechanisms and conclusions reached in a recent synthesis of the
> structural and morphologic data from Honduras. Poor fits of our
> preferred models to the velocities of GPS sites near the Gulf of
> Fonseca may be an artifact of the still-short GPS time-series in
> this region or the simplifying assumptions of our FEMs
>
> ------------------------------------
>
> Dr. Robert Rogers
>
> Assistant Professor
>
> Geology Program, Department of Physics and Geology
>
> California State University, Stanislaus
>
> One University Circle, Turlock, CA 95382
>
> Tel. 209 664-6691
>
> email:  <mailto:rrogers@...> rrogers@...
>
> home:  <http://geology.csustan.edu/rrogers/>
http://geology.csustan.edu/rrogers/
>
> Honduras Geology:
> <http://geology.csustan.edu/rrogers/honduras/index.htm>
http://geology.csustan.edu/rrogers/honduras/index.htm

Reply | Messages in this Topic (10)

#908

From: Jose Ramon Jimenez <jrjimenez59@...>
Date: Sat Jul 18, 2009 8:00 pm
Subject: Re: New Publication - A GPS and modeling study of deformation in northern Central America

gracias guiseppe i wil wait your visit to honduras , espect to confirm and arribe, to coment your work nearly a thansk (gracias).

--- El sáb 18-jul-09, Giuseppe Giunta 072003 <giuntape@...> escribió:

De:: Giuseppe Giunta 072003 <giuntape@...>
Asunto: Re: [carib] New Publication - A GPS and modeling study of deformation in northern Central America
A: carib@yahoogroups.com
Fecha: sábado 18 de julio de 2009, 9:19

Hi Rob,
this is a wonderful paper, which confirms several seismotectonic ideas and
opens many problems on the seismic hazard evaluation.
We are working on the tectonics of the area, and I would like to keep in
contact with you for discussion and improvement of our work.
I should go in Central America in the next November; I will inform you about
my agenda.
All the best.
Giuseppe

Prof. Giuseppe Giunta
Dipartimento di Geologia, Università di Palermo (Italia)
Via Archirafi 20-22, 90100 Palermo (Italia)
tel. +39 0916230337 - cell. +39 3297979921
giuntape@unipa. it

On Fri, 17 Jul 2009 09:53:09 -0700, robert rogers wrote
> Rodriguez M, DeMets C, Rogers R, Tenorio C, Hernandez D (2009) A GPS
> and modeling study of deformation in northern Central America.
> Geophysical Journal International
>
> published online: 13 Jul 2009
>
> http://www3. interscience. wiley.com/ journal/12251098 8/abstract
>
> We use GPS measurements at 37 stations in Honduras and El Salvador
> to describe active deformation of the western end of the Caribbean
> Plate between the Motagua fault and Central American volcanic arc.
> All GPS sites located in eastern Honduras move with the Caribbean
> Plate, in accord with geologic evidence for an absence of
> neotectonic deformation in this region. Relative to the Caribbean
> Plate, the other stations in the study area move west to
> [UTF-8?]westâ€“northwest at rates that increase gradually from 3.3 ± 0.6
mm
> [UTF-8?]yrâˆ’1 in central Honduras to 4.1 ± 0.6 mm [UTF-8?]yrâˆ’1 in
western
> Honduras to as high as [UTF-8?]11â€“12 mm [UTF-8?]yrâˆ’1 in southern
Guatemala. The
> site motions are consistent with slow westward extension that has
> been inferred by previous authors from the north-striking grabens
> and earthquake focal mechanisms in this region. We examine the
> factors that influence the regional deformation by comparing the new
> GPS velocity field to velocity fields predicted by finite element
> models (FEMs) that incorporate the regional plate boundary faults
> and known plate motions. Our modeling suggests that the obliquely
> convergent [UTF-8?](âˆ¼20Â°) direction of [UTF-8?]Caribbeanâ€“North
American Plate
> motion relative to the Motagua fault west of 90°W impedes the ENE-
> directed motion of the Caribbean Plate in southern Guatemala, giving
> rise to extension in southern Guatemala and western Honduras. The
> FEM predictions agree even better with the measured velocities if
> the plate motion west of the Central American volcanic arc is forced
> to occur over a broad zone rather than along a single through going
> plate boundary fault. Our analysis confirms key predictions of a
> previous numerical model for deformation in this region, and also
> indicates that the curvature of the Motagua fault causes significant
> along-strike changes in the orientations of the principal strain-
> rate axes in the fault borderlands, in accord with earthquake focal
> mechanisms and conclusions reached in a recent synthesis of the
> structural and morphologic data from Honduras. Poor fits of our
> preferred models to the velocities of GPS sites near the Gulf of
> Fonseca may be an artifact of the still-short GPS time-series in
> this region or the simplifying assumptions of our FEMs
>
> ------------ --------- --------- ------
>
> Dr. Robert Rogers
>
> Assistant Professor
>
> Geology Program, Department of Physics and Geology
>
> California State University, Stanislaus
>
> One University Circle, Turlock, CA 95382
>
> Tel. 209 664-6691
>
> email: <mailto:rrogers@geology. csustan.edu> rrogers@geology. csustan.edu
>
> home: <http://geology. csustan.edu/ rrogers/>
http://geology. csustan.edu/ rrogers/
>
> Honduras Geology:
> <http://geology. csustan.edu/ rrogers/honduras /index.htm>
http://geology. csustan.edu/ rrogers/honduras /index.htm

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Reply | Messages in this Topic (10)

#909

From: Pascual Marquez <pascual.marquez@...>
Date: Sun Jul 19, 2009 7:45 pm
Subject: Re: New Publication - A GPS and modeling study of deformation in northern Central America

pascual.marquez@...

Yes, it is an interesting paper, I ask if there is any research like this going on the southern border of the Caribbean Plate, particularly along the Oca Fault.

On Sat, Jul 18, 2009 at 11:49 AM, Giuseppe Giunta 072003 <giuntape@...> wrote:

Hi Rob,
this is a wonderful paper, which confirms several seismotectonic ideas and
opens many problems on the seismic hazard evaluation.
We are working on the tectonics of the area, and I would like to keep in
contact with you for discussion and improvement of our work.
I should go in Central America in the next November; I will inform you about
my agenda.
All the best.
Giuseppe

Prof. Giuseppe Giunta
Dipartimento di Geologia, Università di Palermo (Italia)
Via Archirafi 20-22, 90100 Palermo (Italia)
tel. +39 0916230337 - cell. +39 3297979921
giuntape@...

On Fri, 17 Jul 2009 09:53:09 -0700, robert rogers wrote
> Rodriguez M, DeMets C, Rogers R, Tenorio C, Hernandez D (2009) A GPS
> and modeling study of deformation in northern Central America.
> Geophysical Journal International
>
> published online: 13 Jul 2009
>
> http://www3.interscience.wiley.com/journal/122510988/abstract
>
> We use GPS measurements at 37 stations in Honduras and El Salvador
> to describe active deformation of the western end of the Caribbean
> Plate between the Motagua fault and Central American volcanic arc.
> All GPS sites located in eastern Honduras move with the Caribbean
> Plate, in accord with geologic evidence for an absence of
> neotectonic deformation in this region. Relative to the Caribbean
> Plate, the other stations in the study area move west to
> [UTF-8?]westâ€“northwest at rates that increase gradually from 3.3 ± 0.6
mm
> [UTF-8?]yrâˆ’1 in central Honduras to 4.1 ± 0.6 mm [UTF-8?]yrâˆ’1 in
western
> Honduras to as high as [UTF-8?]11â€“12 mm [UTF-8?]yrâˆ’1 in southern
Guatemala. The
> site motions are consistent with slow westward extension that has
> been inferred by previous authors from the north-striking grabens
> and earthquake focal mechanisms in this region. We examine the
> factors that influence the regional deformation by comparing the new
> GPS velocity field to velocity fields predicted by finite element
> models (FEMs) that incorporate the regional plate boundary faults
> and known plate motions. Our modeling suggests that the obliquely
> convergent [UTF-8?](âˆ¼20Â°) direction of [UTF-8?]Caribbeanâ€“North
American Plate
> motion relative to the Motagua fault west of 90°W impedes the ENE-
> directed motion of the Caribbean Plate in southern Guatemala, giving
> rise to extension in southern Guatemala and western Honduras. The
> FEM predictions agree even better with the measured velocities if
> the plate motion west of the Central American volcanic arc is forced
> to occur over a broad zone rather than along a single through going
> plate boundary fault. Our analysis confirms key predictions of a
> previous numerical model for deformation in this region, and also
> indicates that the curvature of the Motagua fault causes significant
> along-strike changes in the orientations of the principal strain-
> rate axes in the fault borderlands, in accord with earthquake focal
> mechanisms and conclusions reached in a recent synthesis of the
> structural and morphologic data from Honduras. Poor fits of our
> preferred models to the velocities of GPS sites near the Gulf of
> Fonseca may be an artifact of the still-short GPS time-series in
> this region or the simplifying assumptions of our FEMs
>
> ------------------------------------
>
> Dr. Robert Rogers
>
> Assistant Professor
>
> Geology Program, Department of Physics and Geology
>
> California State University, Stanislaus
>
> One University Circle, Turlock, CA 95382
>
> Tel. 209 664-6691
>
> email: <mailto:rrogers@...> rrogers@...
>
> home: <http://geology.csustan.edu/rrogers/>
http://geology.csustan.edu/rrogers/
>
> Honduras Geology:
> <http://geology.csustan.edu/rrogers/honduras/index.htm>
http://geology.csustan.edu/rrogers/honduras/index.htm

Reply | Messages in this Topic (10)

#910

From: "Giuseppe Giunta 072003" <giuntape@...>
Date: Mon Jul 20, 2009 8:37 am
Subject: Re: New Publication - A GPS and modeling study of deformation in northern Central America

giuseppegiun...

I have some papers on the tectonic geometry of the southern margin of the
Caribbean Plate but they don't deal with the seismotectonic pattern.
Frank Audemard is author of several papers on the seismotectonic of that
areas, and you can contact him for more informations.
I suppose that Frank, who is also connected at the carib site, is reding this
email.
All the best.
Giuseppe

On Sun, 19 Jul 2009 15:55:54 -0430, Pascual Marquez wrote
> Yes, it is an interesting paper, I ask if there is any research like
> this going on the southern border of the Caribbean Plate,
>  particularly along the Oca Fault.
>
> On Sat, Jul 18, 2009 at 11:49 AM, Giuseppe Giunta 072003
> <giuntape@...>wrote:
>
> >
> >
> > Hi Rob,
> > this is a wonderful paper, which confirms several seismotectonic ideas and
> > opens many problems on the seismic hazard evaluation.
> > We are working on the tectonics of the area, and I would like to keep in
> > contact with you for discussion and improvement of our work.
> > I should go in Central America in the next November; I will inform you
> > about
> > my agenda.
> > All the best.
> > Giuseppe
> >
> > Prof. Giuseppe Giunta
> > Dipartimento di Geologia, Universit� di Palermo (Italia)
> > Via Archirafi 20-22, 90100 Palermo (Italia)
> > tel. +39 0916230337 - cell. +39 3297979921
> > giuntape@... <giuntape%40unipa.it>
> >
> > On Fri, 17 Jul 2009 09:53:09 -0700, robert rogers wrote
> > > Rodriguez M, DeMets C, Rogers R, Tenorio C, Hernandez D (2009) A GPS
> > > and modeling study of deformation in northern Central America.
> > > Geophysical Journal International
> > >
> > > published online: 13 Jul 2009
> > >
> > > http://www3.interscience.wiley.com/journal/122510988/abstract
> > >
> > > We use GPS measurements at 37 stations in Honduras and El Salvador
> > > to describe active deformation of the western end of the Caribbean
> > > Plate between the Motagua fault and Central American volcanic arc.
> > > All GPS sites located in eastern Honduras move with the Caribbean
> > > Plate, in accord with geologic evidence for an absence of
> > > neotectonic deformation in this region. Relative to the Caribbean
> > > Plate, the other stations in the study area move west to
> > > [UTF-8?][UTF-8?]westâ€“northwest at rates that increase gradually
from 3.3 � 0.6
> > mm
> > > [UTF-8?][UTF-8?]yrâˆ’1 in central Honduras to 4.1 � 0.6 mm
[UTF-8?][UTF-8?]yrâˆ’1 in
> > western
> > > Honduras to as high as [UTF-8?][UTF-8?]11â€“12 mm
[UTF-8?][UTF-8?]yrâˆ’1 in southern
> > Guatemala. The
> > > site motions are consistent with slow westward extension that has
> > > been inferred by previous authors from the north-striking grabens
> > > and earthquake focal mechanisms in this region. We examine the
> > > factors that influence the regional deformation by comparing the new
> > > GPS velocity field to velocity fields predicted by finite element
> > > models (FEMs) that incorporate the regional plate boundary faults
> > > and known plate motions. Our modeling suggests that the obliquely
> > > convergent [UTF-8?][UTF-8?](âˆ¼20Â°) direction of
[UTF-8?][UTF-8?]Caribbeanâ€“North
> > American Plate
> > > motion relative to the Motagua fault west of 90�W impedes the ENE-
> > > directed motion of the Caribbean Plate in southern Guatemala, giving
> > > rise to extension in southern Guatemala and western Honduras. The
> > > FEM predictions agree even better with the measured velocities if
> > > the plate motion west of the Central American volcanic arc is forced
> > > to occur over a broad zone rather than along a single through going
> > > plate boundary fault. Our analysis confirms key predictions of a
> > > previous numerical model for deformation in this region, and also
> > > indicates that the curvature of the Motagua fault causes significant
> > > along-strike changes in the orientations of the principal strain-
> > > rate axes in the fault borderlands, in accord with earthquake focal
> > > mechanisms and conclusions reached in a recent synthesis of the
> > > structural and morphologic data from Honduras. Poor fits of our
> > > preferred models to the velocities of GPS sites near the Gulf of
> > > Fonseca may be an artifact of the still-short GPS time-series in
> > > this region or the simplifying assumptions of our FEMs
> > >
> > > ------------------------------------
> > >
> > > Dr. Robert Rogers
> > >
> > > Assistant Professor
> > >
> > > Geology Program, Department of Physics and Geology
> > >
> > > California State University, Stanislaus
> > >
> > > One University Circle, Turlock, CA 95382
> > >
> > > Tel. 209 664-6691
> > >
> > > email: <mailto:rrogers@...<rrogers%40geology.csustan.edu>>
> > rrogers@... <rrogers%40geology.csustan.edu>
> > >
> > > home: <http://geology.csustan.edu/rrogers/>
> > http://geology.csustan.edu/rrogers/
> > >
> > > Honduras Geology:
> > > <http://geology.csustan.edu/rrogers/honduras/index.htm>
> > http://geology.csustan.edu/rrogers/honduras/index.htm
> >
> >
> >


Prof. Giuseppe Giunta
Dipartimento di Geologia, Universit� di Palermo (Italia)
Via Archirafi 20-22, 90100 Palermo (Italia)
tel. +39 0916230337 - cell. +39 3297979921
giuntape@...

Reply | Messages in this Topic (10)

#911

From: "robert rogers" <rrogers@...>
Date: Mon Jul 20, 2009 7:02 pm
Subject: RE: New Publication - A GPS and modeling study of deformation in northern Central America

Thank you Giuseppe,

Credit must go to Manuel Rodriguez and to Chuck DeMets.  Please keep us informed
of your plans.  Remember that elections are currently scheduled in Honduras for
November.  Personally, I am postponing all field work until after elections.

Rob

------------------------------------
Dr. Robert Rogers
Assistant Professor
Geology Program, Department of Physics and Geology
California State University, Stanislaus
One University Circle, Turlock, CA 95382
Tel. 209 664-6691
email: rrogers@...
home: http://geology.csustan.edu/rrogers/
Honduras Geology: http://geology.csustan.edu/rrogers/honduras/index.htm


-----Original Message-----
From: carib@yahoogroups.com [mailto:carib@yahoogroups.com] On Behalf Of Giuseppe
Giunta 072003
Sent: Saturday, July 18, 2009 9:20 AM
To: carib@yahoogroups.com
Subject: Re: [carib] New Publication - A GPS and modeling study of deformation
in northern Central America

Hi Rob,
this is a wonderful paper, which confirms several seismotectonic ideas and
opens many problems on the seismic hazard evaluation.
We are working on the tectonics of the area, and I would like to keep in
contact with you for discussion and improvement of our work.
I should go in Central America in the next November; I will inform you about
my agenda.
All the best.
Giuseppe

Prof. Giuseppe Giunta
Dipartimento di Geologia, Università di Palermo (Italia)
Via Archirafi 20-22, 90100 Palermo (Italia)
tel. +39 0916230337 - cell. +39 3297979921
giuntape@...

On Fri, 17 Jul 2009 09:53:09 -0700, robert rogers wrote
> Rodriguez M, DeMets C, Rogers R, Tenorio C, Hernandez D (2009) A GPS
> and modeling study of deformation in northern Central America.
> Geophysical Journal International
>
> published online: 13 Jul 2009
>
> http://www3.interscience.wiley.com/journal/122510988/abstract
>
> We use GPS measurements at 37 stations in Honduras and El Salvador
> to describe active deformation of the western end of the Caribbean
> Plate between the Motagua fault and Central American volcanic arc.
> All GPS sites located in eastern Honduras move with the Caribbean
> Plate, in accord with geologic evidence for an absence of
> neotectonic deformation in this region. Relative to the Caribbean
> Plate, the other stations in the study area move west to
> [UTF-8?]westâ€“northwest at rates that increase gradually from 3.3 ± 0.6
mm
> [UTF-8?]yrâˆ’1 in central Honduras to 4.1 ± 0.6 mm [UTF-8?]yrâˆ’1 in
western
> Honduras to as high as [UTF-8?]11â€“12 mm [UTF-8?]yrâˆ’1 in southern
Guatemala. The
> site motions are consistent with slow westward extension that has
> been inferred by previous authors from the north-striking grabens
> and earthquake focal mechanisms in this region. We examine the
> factors that influence the regional deformation by comparing the new
> GPS velocity field to velocity fields predicted by finite element
> models (FEMs) that incorporate the regional plate boundary faults
> and known plate motions. Our modeling suggests that the obliquely
> convergent [UTF-8?](âˆ¼20Â°) direction of [UTF-8?]Caribbeanâ€“North
American Plate
> motion relative to the Motagua fault west of 90°W impedes the ENE-
> directed motion of the Caribbean Plate in southern Guatemala, giving
> rise to extension in southern Guatemala and western Honduras. The
> FEM predictions agree even better with the measured velocities if
> the plate motion west of the Central American volcanic arc is forced
> to occur over a broad zone rather than along a single through going
> plate boundary fault. Our analysis confirms key predictions of a
> previous numerical model for deformation in this region, and also
> indicates that the curvature of the Motagua fault causes significant
> along-strike changes in the orientations of the principal strain-
> rate axes in the fault borderlands, in accord with earthquake focal
> mechanisms and conclusions reached in a recent synthesis of the
> structural and morphologic data from Honduras. Poor fits of our
> preferred models to the velocities of GPS sites near the Gulf of
> Fonseca may be an artifact of the still-short GPS time-series in
> this region or the simplifying assumptions of our FEMs
>
> ------------------------------------
>
> Dr. Robert Rogers
>
> Assistant Professor
>
> Geology Program, Department of Physics and Geology
>
> California State University, Stanislaus
>
> One University Circle, Turlock, CA 95382
>
> Tel. 209 664-6691
>
> email:  <mailto:rrogers@...> rrogers@...
>
> home:  <http://geology.csustan.edu/rrogers/>
http://geology.csustan.edu/rrogers/
>
> Honduras Geology:
> <http://geology.csustan.edu/rrogers/honduras/index.htm>
http://geology.csustan.edu/rrogers/honduras/index.htm






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