HR: 1330h
AN: S52F-0172    [PDF]
TI: Seismicity at Jalisco-Nayarit Border, Mexico
AU: * Rutz, M
EM: marta@iberalp.es
AF: Centro Sismologico y volcanologico de Occidente, Universidad de Guadalajara, Avda. Universidad 203, Puerto Vallarta, Jal 48280 Mexico
AU: Nunez-cornu, F
EM: fcornu@pv.udg.mx
AF: Centro Sismologico y volcanologico de Occidente, Universidad de Guadalajara, Avda. Universidad 203, Puerto Vallarta, Jal 48280 Mexico
AU: Camarena, M
EM: macg2907@yahoo.com.mx
AF: Centro Sismologico y volcanologico de Occidente, Universidad de Guadalajara, Avda. Universidad 203, Puerto Vallarta, Jal 48280 Mexico
AU: Trejo, E
EM: eli@sisvoc.cuc.udg.mx
AF: Centro Sismologico y volcanologico de Occidente, Universidad de Guadalajara, Avda. Universidad 203, Puerto Vallarta, Jal 48280 Mexico
AU: Reyes-Davila, G
AF: RESCO, Unoversidad de Colima, Avda. 28 de Julio 600, Colima, Col 28000 Mexico
AU: Suarez-Plasencia, C
AF: Centro Sismologico y volcanologico de Occidente, Universidad de Guadalajara, Avda. Universidad 203, Puerto Vallarta, Jal 48280 Mexico
AB: Since 2002 a regional seismic network from Jalisco Civil Defense and University of Guadalalajara is monitoring seismicity at the northwest border of Jalisco block. With the installation of a seismic station on Ceboruco Volcano, by Nayarit Civil Defense, coverage of the network extends to east. Ceboruco Volcano is located on the Tepic-Zacoalco graben, the east border of Jalisco block, this allow us to begin to monitoring this area. The zone of Bahia de Banderas, between the north coast of Jalisco and south coast of Nayarit, probably on a tectonic triple point, is a region of high seismic potential. Activ tectonic structures and clusters in the zone of El Tuito and the Dam Cajon de Pe¤as have been identified. The seismicity in the north area of the bay is low, meanwhile in the south, where the bay is deeper, the seismicity level is higher with an East-West tendency. At the east, the Amatlan de Ca¤as-Ameca zone presents continue activity, here have been possible to locate events with local magnitude between 2 and 4. Tectonovolcanic events registred at Ceboruco station presents waveform with scattering. The seismic distribution of the coast of Jalisco shows parallel alignments to the trench throughout al the coast. Other perpendicular alignments to the coastline show active morphologic structures within the Jalisco block related to the subduction of the Rivera plate under the Jalisco block.
DE: 7205 Continental crust (1242)
DE: 7280 Volcano seismology (8419)
DE: 7299 General or miscellaneous
SC: Seismology [S]
MN: 2003 Fall Meeting