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Geophysical Studies across Rivera Plate and Jalisco Block, Mexico: TsuJal Project

2015; Seismological Society of America; Volume: 87; Issue: 1 Linguagem: Inglês

10.1785/0220150144

1938-2057

F. J. Núñez-Cornũ, Diego Córdoba, Juan José Dañobeitia, William L. Bandy, Modesto Ortiz, Rafael Bartolomé, Diana Núñez, A. Zamora-Camacho, Juan Manuel Espíndola, Arturo Castellón, C. R. Escudero, E. Trejo-Gómez, Felipe de Jesús Escalona‐Alcázar, C. Suárez‐Plascencia, F. A. Nava, C. Mortera,

Earthquake Detection and Analysis

Research Article| December 16, 2015 Geophysical Studies across Rivera Plate and Jalisco Block, Mexico: TsuJal Project Francisco J. Núñez‐Cornú; Francisco J. Núñez‐Cornú Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Diego Córdoba; Diego Córdoba Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Juan José Dañobeitia; Juan José Dañobeitia Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar William L. Bandy; William L. Bandy Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Modesto Ortiz Figueroa; Modesto Ortiz Figueroa Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Rafael Bartolome; Rafael Bartolome Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Diana Núñez; Diana Núñez Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Araceli Zamora‐Camacho; Araceli Zamora‐Camacho Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Juan Manuel Espíndola; Juan Manuel Espíndola Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Arturo Castellón; Arturo Castellón Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Christian R. Escudero; Christian R. Escudero Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Elizabeth Trejo‐Gómez; Elizabeth Trejo‐Gómez Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Felipe de Jesús Escalona‐Alcázar; Felipe de Jesús Escalona‐Alcázar Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Carlos Suárez Plascencia; Carlos Suárez Plascencia Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar F. Alejandro Nava; F. Alejandro Nava Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar Carlos Mortera; Carlos Mortera Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Search for other works by this author on: GSW Google Scholar TsuJal Working Group TsuJal Working Group Search for other works by this author on: GSW Google Scholar Author and Article Information Francisco J. Núñez‐Cornú Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Diego Córdoba Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Juan José Dañobeitia Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com William L. Bandy Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Modesto Ortiz Figueroa Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Rafael Bartolome Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Diana Núñez Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Araceli Zamora‐Camacho Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Juan Manuel Espíndola Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Arturo Castellón Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Christian R. Escudero Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Elizabeth Trejo‐Gómez Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Felipe de Jesús Escalona‐Alcázar Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Carlos Suárez Plascencia Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com F. Alejandro Nava Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com Carlos Mortera Centro de Sismología y Volcanología de Occidente, Universidad de Guadalajara, Universidad 203, Puerto Vallarta, Jalisco 48280 Mexicopacornu77@gmail.com TsuJal Working Group Publisher: Seismological Society of America First Online: 14 Jul 2017 Online ISSN: 1938-2057 Print ISSN: 0895-0695 © 2015 by the Seismological Society of America Seismological Research Letters (2016) 87 (1): 59–72. https://doi.org/10.1785/0220150144 Article history First Online: 14 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Francisco J. Núñez‐Cornú, Diego Córdoba, Juan José Dañobeitia, William L. Bandy, Modesto Ortiz Figueroa, Rafael Bartolome, Diana Núñez, Araceli Zamora‐Camacho, Juan Manuel Espíndola, Arturo Castellón, Christian R. Escudero, Elizabeth Trejo‐Gómez, Felipe de Jesús Escalona‐Alcázar, Carlos Suárez Plascencia, F. Alejandro Nava, Carlos Mortera, TsuJal Working Group; Geophysical Studies across Rivera Plate and Jalisco Block, Mexico: TsuJal Project. Seismological Research Letters 2015;; 87 (1): 59–72. doi: https://doi.org/10.1785/0220150144 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietySeismological Research Letters Search Advanced Search ABSTRACT In the spring of 2014, an onshore–offshore geophysical experiment ("Crustal Characterization of the Rivera plate–Jalisco Block Boundary and Its Implications for Seismic and Tsunami Hazard Assessment") was carried out in the frame of the TsuJal project to define the crustal architecture of the western Mexican active margin and identify potential structural sources that can trigger earthquakes and tsunamis at the convergence between the Rivera plate (RP) and the Jalisco Block (JB) within the North American plate. In this work, we present the preliminary results about bathymetric, structural geology, and wide‐angle seismic data of the southern coast of Bahía de Banderas. These data indicate the slab thickness in this area is about 10 km and presents a dip angle of about 8°. Continental crustal thickness below Puerto Vallarta is about 20 km, but no evidences of continental Moho and clear subduction features (trench, accretionary prism) are observed. Nevertheless, this model supports the hypothesis that the region of Bahía de Banderas is under strong crustal stresses generating structural lineaments with the same trends offshore and inland due to the convergence of the RP against the JB. Most of the seismicity reported can be associated with the main structural lineaments. Moreover, the Banderas Canyon (BC) is apparently in an eastward opening process, which seems to continue through the Rio Pitillal river valley; no seismic or morphological evidences were found to suggest the BC is a continuation of the Vallarta graben. Offshore, the Sierra de Cleofas, located south of María Cleofas Island, marks the limit between the RP and the JB along 100 km. It may be the result of the RP pushing against the JB establishing the beginning of the current subduction process, with associated seismic activity. If a subduction type earthquake occurs in this area, the associated magnitude will be about 7.5 and could have a tsunamigenic effect. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.