REGISTRES SÍSMICS OBTINGUTS A LES ESTACIONS GESTIONADES PELS SISTEMES ISEV DE L'ESDEVENIMENT OCORREGUT EL DIA 8 D'OCTUBRE DE 2005 AL PAKISTAN.
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INFORMACIO SOBRE L'ESDEVENIMENT PROPORCIONADA PEL SERVEI GEOLÒGIC DELS ESTATS UNITS (UNITED STATES GEOLOGICAL SURVEY) amb data 9 d'octubre de 2005
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for
Seismology, Denver
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A major earthquake occurred at 03:50:38 (UTC)
on Saturday, October 8, 2005. The magnitude 7.6 event has been located in
PAKISTAN. (This event has been reviewed by a seismologist.)
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Earthquakes and active faults in
northern Pakistan and adjacent parts of India and Afghanistan are the
direct result of the Indian subcontinent moving northward at a rate of
about 40 mm/yr (1.6 inches/yr) and colliding with the Eurasian continent.
This collision is causing uplift that produces the highest mountain peaks
in the world including the Himalayan, the Karakoram, the Pamir and the
Hindu Kush ranges. As the Indian plate moves northward, it is being
subducted or pushed beneath the Eurasian plate. Much of the compressional
motion between these two colliding plates has been and continues to be
accommodated by slip on a suite of major thrust faults that are at the
Earth’s surface in the foothills of the mountains and dip northward
beneath the ranges. These include the Main Frontal thrust, the Main
Central thrust, the Main boundary thrust, and the Main Mantle thrust.
These thrust faults have a sinuous trace as they arc across the foothills
in northern India and into northern Pakistan. In detail, the modern active
faults are actually a system of faults comprised of a number of individual
fault traces. In the rugged mountainous terrain, it is difficult to
identify and map all of the individual thrust faults, but the overall
tectonic style of the modern deformation is clear in the area of the
earthquake; north- and northeast-directed compression is producing thrust
faulting. Near the town of Muzaffarabad, about 10 km southwest of the
earthquake epicenter, active thrust faults that strike northwest-southeast
have deformed and warped Pleistocene alluvial-fan surfaces into anticlinal
ridges. The strike and dip direction of these thrust faults is compatible
with the style of faulting indicated by the focal mechanism from the
nearby M 7.6 earthquake.
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Location Maps:
Did you feel it?
Theoretical P-Wave Travel Times High-Resolution Graphics for Media Earthquake Information for ASIA |
Organizations
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For more information, go to
http://neic.usgs.gov/ ||
Contacts
Registre del mateix esdeveniment a l'estacio HGN - Heimansgroeve, Limburg, Països Baixos i informació focal proporcionada per la VEBSN (Virtual European Broadband Seismic Network) de l'ORFEUS (Observatories and Research Facilities for European Seismology)
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Servidors d'Informació Sísmica En Viu (ISEV) gestionats pel
sistema SISMIC.
El servidor SISMIC és una cooperació entre el
Departament d’Astronomia i Meteorologia de la
Universitat de Barcelona i el
Laboratori d'Estudis Geofísics Eduard Fontserè de l'
Institut d'Estudis Catalans.
Pàgina creada per Josep Vila (jvila |
Historical
Moment Tensor Solutions
am.ub.es) el 9 d'octubre de 2005.