HR: 1340h
AN: S13A-1056    [Abstracts]
TI: Seismological and Geodetic Observations of the 15th August 2007 Pisco, Peru Earthquake.
AU: * Biggs, J
EM: jbiggs@rsmas.miami.edu
AF: University of Miami, RSMAS-MGG, 4600 Rickenbacker Causeway, Miami, FL 33149, United States
AU: Psencik, K
EM: kpsencik@rsmas.miami.edu
AF: University of Miami, RSMAS-MGG, 4600 Rickenbacker Causeway, Miami, FL 33149, United States
AU: Norabuena, E
EM: enorab@nazca.igp.gob.pe
AF: Instituto Geofisico del Peru, Departamento de Geodesia y Sismotectonica, Instituto Geofisico del Peru, Calle Badajoz 169, Mayorazgo, Lima, 169, Peru
AU: Robinson, D
EM: davidr@earth.ox.ac.uk
AF: University of Oxford, Department of Earth Sciences, Parks Road, Oxford, OX1 3PR, United Kingdom
AU: Dixon, T
EM: tdixon@rsmas.miami.edu
AF: University of Miami, RSMAS-MGG, 4600 Rickenbacker Causeway, Miami, FL 33149, United States
AB: On 15th August 2007, a M8.0 earthquake occurred on the interface between the Nazca and South American Plates causing widespread damage in the towns of Chincha Alta, Ica and Pisco, with 514 casualties and 35,500 buildings reported destroyed. The 2007 Pisco earthquake occurred in a region between two large recent earthquakes: the 1996 M7.7 Nazca earthquake to the south and, in 1974, a M8.1 earthquake to the north. The existing local GPS network was resurveyed within 2 weeks of the earthquake and significant displacements measured at 8-10 sites. Co-seismic and postseismic InSAR data has been collected from several satellites, including Envisat, ERS-2, Radarsat and ALOS. In the two weeks following the mainshock, 42 aftershocks were recorded teleseismicly with magnitudes in the range 4-6.3. We will present results from the analysis of this geodetic data along with seismological analysis of teleseismic recordings of the mainshock and aftershocks.
DE: 1209 Tectonic deformation (6924)
DE: 1240 Satellite geodesy: results (6929, 7215, 7230, 7240)
DE: 7209 Earthquake dynamics (1242)
DE: 7230 Seismicity and tectonics (1207, 1217, 1240, 1242)
SC: Seismology [S]
MN: 2007 Fall Meeting