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Summary of Proposal GEO0746

TitleMonitoring postseismic crustal deformation in Haiti with TerraSAR-X observations
Investigator Wdowinski, Shimon - Florida International University, Earth and Environment
Team Member
Dr. Lu, Zhang - U.S. Geological Survey, EROS Center & Cascades Volcano Observatory
Dr. Calais, Eric - Purdue University, Dept. of Earth & Atmospheric Sciences
Dr. Hooper, Andy - Delft University of Technology, Delft Institute of Earth Observation and Space Systems
Dr. Vincent, Paul - Oregon State University, Marine Geology and Geophysics
Dr. Walter, Thomas - Deutsches GeoForschungsZentrum, VolcanoTectonics Research Group
Dr. Zebker, Howard - Stanford University, Geophysics
Dr. Bechor, Noa - Massachusetts Institute of Technology, Departmant of Earth, Atmospheric and Planetary Sciences
SummaryThe 2010 M=7.0 Haiti earthquake ruptured a 80 km long fault, had a seismic moment of 5.44 x 1026 dyne cm, and caused a devastating destruction in the Haitiís capital, Port-au-Prince. A magnitude 7 earthquake typically displaces the Earthís crust by 3-5 meters and deforms the crust over a wide area along the fault. It also induces large transient displacements, termed postseismic deformation. We propose to monitor the posteseismic deformation induced by the Haiti earthquake using TSX data. We will task the satellite to acquire data in the next 12 months over the ruptured segment of the Enriquillo Fault. Our working assumption is that post-seismic deformation is time dependent. It occurs right after a large earthquake and decays with time. The results of this study will be used to re-evaluate the seismic hazard of the Port-au-Prince area for both short-term (aftershocks) and long-term (next big earthquake) seismic activity.

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