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Triggering of destructive earthquakes in El Salvador

2003; Geological Society of America; Volume: 32; Issue: 1 Linguagem: Inglês

10.1130/g20089.1

1943-2682

José J. Martínez Díaz, José Antonio Álvarez Gómez, B. Benito, Douglas Hernández,

Seismic Performance and Analysis

Research Article| January 01, 2004 Triggering of destructive earthquakes in El Salvador José J. Martínez-Díaz; José J. Martínez-Díaz 1Departamento de Geodinámica, Universidad Complutense de Madrid, Madrid 28040, Spain Search for other works by this author on: GSW Google Scholar José A. Álvarez-Gómez; José A. Álvarez-Gómez 1Departamento de Geodinámica, Universidad Complutense de Madrid, Madrid 28040, Spain Search for other works by this author on: GSW Google Scholar Belén Benito; Belén Benito 2E.U.I.T., Topografía, Universidad Politécnica de Madrid, Madrid 28031, Spain Search for other works by this author on: GSW Google Scholar Douglas Hernández Douglas Hernández 3Servicio Nacional de Estudios Territoriales, Avda Las Mercedes, San Salvador, El Salvador Search for other works by this author on: GSW Google Scholar Author and Article Information José J. Martínez-Díaz 1Departamento de Geodinámica, Universidad Complutense de Madrid, Madrid 28040, Spain José A. Álvarez-Gómez 1Departamento de Geodinámica, Universidad Complutense de Madrid, Madrid 28040, Spain Belén Benito 2E.U.I.T., Topografía, Universidad Politécnica de Madrid, Madrid 28031, Spain Douglas Hernández 3Servicio Nacional de Estudios Territoriales, Avda Las Mercedes, San Salvador, El Salvador Publisher: Geological Society of America Received: 02 Aug 2003 Revision Received: 01 Oct 2003 Accepted: 02 Oct 2003 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2004) 32 (1): 65–68. https://doi.org/10.1130/G20089.1 Article history Received: 02 Aug 2003 Revision Received: 01 Oct 2003 Accepted: 02 Oct 2003 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation José J. Martínez-Díaz, José A. Álvarez-Gómez, Belén Benito, Douglas Hernández; Triggering of destructive earthquakes in El Salvador. Geology 2004;; 32 (1): 65–68. doi: https://doi.org/10.1130/G20089.1 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 SocietyGeology Search Advanced Search Abstract We investigate the existence of a mechanism of static stress triggering driven by the interaction of normal faults in the Middle American subduction zone and strike-slip faults in the El Salvador volcanic arc. The local geology points to a large strike-slip fault zone, the El Salvador fault zone, as the source of several destructive earthquakes in El Salvador along the volcanic arc. We modeled the Coulomb failure stress (CFS) change produced by the June 1982 and January 2001 subduction events on planes parallel to the El Salvador fault zone. The results have broad implications for future risk management in the region, as they suggest a causative relationship between the position of the normal-slip events in the subduction zone and the strike-slip events in the volcanic arc. After the February 2001 event, an important area of the El Salvador fault zone was loaded with a positive change in Coulomb failure stress (>0.15 MPa). This scenario must be considered in the seismic hazard assessment studies that will be carried out in this area. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.