HR: 13:55h
AN: T33F-02 INVITED    [Abstracts]
TI: Large earthquakes in the Himalaya, where, when, how often?
AU: * Avouac, J
EM: avouac@gps.caltech.edu
AF: California Institute of Technology - Tectonics Observatory, 1200 E. California Blvd. MC 100- 23, Pasadena, CA 91125, United States
AU: Genrich, J
EM: jeff@gps.caltech.edu
AF: California Institute of Technology - Tectonics Observatory, 1200 E. California Blvd. MC 100- 23, Pasadena, CA 91125, United States
AU: Konca, O
EM: ozgun@gps.caltech.edu
AF: California Institute of Technology - Tectonics Observatory, 1200 E. California Blvd. MC 100- 23, Pasadena, CA 91125, United States
AU: Leprince, S
EM: leprinc@gps.caltech.edu
AF: California Institute of Technology - Tectonics Observatory, 1200 E. California Blvd. MC 100- 23, Pasadena, CA 91125, United States
AU: Chlieh, M
EM: chlieh@gps.caltech.edu
AF: California Institute of Technology - Tectonics Observatory, 1200 E. California Blvd. MC 100- 23, Pasadena, CA 91125, United States
AU: Galetzka, J
EM: galetzka@gps.caltech.edu
AF: California Institute of Technology - Tectonics Observatory, 1200 E. California Blvd. MC 100- 23, Pasadena, CA 91125, United States
AU: Rajaure, S
EM: nscdmg@mos.com.np
AF: National Seismological Centre, Department of Mines and Geology, Lainchaur, Kathmandu, Nepal
AU: Sapkota, S
EM: nscdmg@mos.com.np
AF: National Seismological Centre, Department of Mines and Geology, Lainchaur, Kathmandu, Nepal
AU: Flouzat, M
EM: mireille.flouzat@cea.fr
AF: Laboratoire de Detection et de Geophysique, CEA, BP 12, Bruyeres-le-Chatel, 91680, France
AU: Helmberger, D
EM: helm@gps.caltech.edu
AF: California Institute of Technology - Tectonics Observatory, 1200 E. California Blvd. MC 100- 23, Pasadena, CA 91125, United States
AB: Assessing the characteristics of large earthquakes along the Himalayan arc, such as their rupture extent, magnitude, return period and effects, is a major societal concern as well as a challenging scientific issue. To address that issue a number of complementary approaches need be applied to provide constraints on sub- surface structure, detect active faults and assess their slip rates and seismic behavior. The presentation will first review some aspects of the Mw 7.6 Kashmir earthquake of 2005 as revealed from remote sensing measurements of the surface deformation and seismic waveforms modeling. Next we will review learning made from the study of active deformation in the Himalaya of Nepal, in particular thanks to the combination of morphotectonic studies with geodetic and local seismic monitoring. We will discuss how these data can be used to estimate heterogeneity of geodetic coupling along the Main Himalayan Thrust fault, the relationship to potential large ruptures, implications for the return period of large events and the mechanics governing the observed behavior.
DE: 1242 Seismic cycle related deformations (6924, 7209, 7223, 7230)
DE: 8102 Continental contractional orogenic belts and inversion tectonics
DE: 8123 Dynamics: seismotectonics
SC: Tectonophysics [T]
MN: 2007 Fall Meeting