HR: 0800h
AN: S51A-0130    [Abstracts]
TI: Characterization and Relocation of Seismic Clusters in the Area of Bahia de Banderas, Jalisco-Nayarit, Mexico
AU: * Rutz Lopez, M
EM: marta@iberalp.es
AF: Centro de Sismologia y Volcanologia de Occidente, Univ. de Guadalajara, Av. Universidad 203, Puerto Vallarta, Jal 48280 Mexico
AU: Nunez-Cornu, F J
EM: fcornu@pv.udg.mx
AF: Centro de Sismologia y Volcanologia de Occidente, Univ. de Guadalajara, Av. Universidad 203, Puerto Vallarta, Jal 48280 Mexico
AU: Carmona, E
AF: Instituto Andaluz de Geofˇsica Universidad de Granada, Granada, Granada, AND 22222 Spain
AB: We analysed the seismic activity that took place the year of 2003 in the area of Bahia de Banderas, between the states of Jalisco and Nayarit, registrated with a local network of 7 stations, which belongs to the Civil Defence of Jalisco and the University of Guadalajara. 400 events have been located, in these earthquakes we identified some series of a similar waveforms. For defining this similarity between seismic events and in order to classify them into clusters, we have applied the cross-correlation method of the P and S arrivals. We found a fourth part of epicentres gathered into 15 clusters of 3-25 events. For some clusters we used relocations relative to a master event. Located south of Bahia de Banderas exist clusters aligned along structures trending N-S in the area of Tuito. This trend agrees with the topographic relief of the area. Other clustes can be related with active tectonic structures at north of Cajon de Pe¤as dam (Tomatlan). Another cluster was identified at the East, Amatlan de Ca¤as-Ameca area, and one more in the center of the Bahia de Banderas.
DE: 7230 Seismicity and seismotectonics
DE: 7205 Continental crust (1242)
DE: 7215 Earthquake parameters
SC: Seismology [S]
MN: 2004 AGU Fall Meeting