HR: 16:40h
AN: U54B-02    [Abstracts]
TI: The importance of earthquake research in the assessment of seismic hazards in Argentina
AU: Giuliano, A
EM: giuliano@inpres.gov.ar
AF: INPRES, Roger Balet 47 N, San Juan, 5400, Argentina
AU: * Alvarado, P
EM: alvarado@unsj.edu.ar
AF: CONICET-Univ. Nac. de San Juan, Meglioli 1160 S, San Juan, 5400, Argentina
AU: Beck, S
EM: slbeck@email.arizona.edu
AF: Univ. of Arizona, Gould Simpson Bldg. #77, 1040 E, Tucson, AZ 85721, United States
AB: The history of Argentina has repeated occurrences of damaging crustal earthquakes with examples like the 1944 (Mw 7.0) San Juan earthquake, considered the largest natural disaster. These large earthquakes occur in the continental Andean backarc crust as far as 600 to 800 km east from the Trench. Of high significance is the correlation of this large-sized continental seismicity with the horizontal position of the subducted Nazca plate at about 100-km depth. In addition, lateral variations of the crustal structure are expected since several terranes have been accreted to western South America since the Paleozoic. Given the high seismic potential of this region, understanding of these seismotectonic processes and the crustal structure is essential for the assessment of seismic hazards and the mitigation of their effects. In this presentation we show our work based on an integrated research effort that combines permanent and temporal seismic networks from the Argentinean National Institute for Seismic Disaster Mitigation (INPRES) and IRIS- Passcal arrays. This international collaboration started in 2000 and involves researchers, technicians and students from the University of Arizona (USA), the National University of San Juan (Argentina) and INPRES (Argentina).
DE: 0810 Post-secondary education
DE: 6699 General or miscellaneous
DE: 7215 Earthquake source observations (1240)
DE: 7240 Subduction zones (1207, 1219, 1240)
DE: 7294 Seismic instruments and networks (0935, 3025)
SC: Union [U]
MN: 2007 Joint Assembly