Scaling Relationships of Source Parameters of Mw 6.9-8.1 Earthquakes in the Cocos-Rivera-North American Subduction Zone

Abstract

Research Article| March 25, 2014 Scaling Relationships of Source Parameters of Mw 6.9–8.1 Earthquakes in the Cocos–Rivera–North American Subduction Zone Alejandro Ramírez‐Gaytán; Alejandro Ramírez‐Gaytán aDepartamento de Ciencias Computaciónales, Centro Universitario de Ciencias Exactas e Ingeniería (CUCEI) de la Universidad de Guadalajara, Boulevard Marcelino García Barragán # 1421, CP. 44430, Guadalajara, Jalisco, Méxicol7m8s3r@gmail.com Search for other works by this author on: GSW Google Scholar Jorge Aguirre; Jorge Aguirre bInstituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, México DF, Méxicojoagg@pumas.iingen.unam.mxmjaimest@iingen.unam.mx Search for other works by this author on: GSW Google Scholar Miguel A. Jaimes; Miguel A. Jaimes bInstituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, México DF, Méxicojoagg@pumas.iingen.unam.mxmjaimest@iingen.unam.mx Search for other works by this author on: GSW Google Scholar Víctor Huérfano Víctor Huérfano cPuerto Rico Seismic Network, Department of Geology, University of Puerto Rico, Residencie 2ª Mayagüez R. 9000, 00680Victor@prsn.uprm.edu Search for other works by this author on: GSW Google Scholar Author and Article Information Alejandro Ramírez‐Gaytán aDepartamento de Ciencias Computaciónales, Centro Universitario de Ciencias Exactas e Ingeniería (CUCEI) de la Universidad de Guadalajara, Boulevard Marcelino García Barragán # 1421, CP. 44430, Guadalajara, Jalisco, Méxicol7m8s3r@gmail.com Jorge Aguirre bInstituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, México DF, Méxicojoagg@pumas.iingen.unam.mxmjaimest@iingen.unam.mx Miguel A. Jaimes bInstituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán 04510, México DF, Méxicojoagg@pumas.iingen.unam.mxmjaimest@iingen.unam.mx Víctor Huérfano cPuerto Rico Seismic Network, Department of Geology, University of Puerto Rico, Residencie 2ª Mayagüez R. 9000, 00680Victor@prsn.uprm.edu Publisher: Seismological Society of America First Online: 14 Jul 2017 Online ISSN: 1943-3573 Print ISSN: 0037-1106 Bulletin of the Seismological Society of America (2014) 104 (2): 840–854. https://doi.org/10.1785/0120130041 Article history First Online: 14 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Alejandro Ramírez‐Gaytán, Jorge Aguirre, Miguel A. Jaimes, Víctor Huérfano; Scaling Relationships of Source Parameters of Mw 6.9–8.1 Earthquakes in the Cocos–Rivera–North American Subduction Zone. Bulletin of the Seismological Society of America 2014;; 104 (2): 840–854. doi: https://doi.org/10.1785/0120130041 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 SocietyBulletin of the Seismological Society of America Search Advanced Search Abstract Seven slip models currently available from kinematic inversions, derived from near‐source strong‐motion and teleseismic body waves in the 0–1.25 Hz frequency range from Mexico’s subduction zone, are used to estimate source‐scaling relationships applicable to the region. Our results are compared with existing scaling relations for subduction environments. The relationships for the rupture area of our results are closer to those of Somerville et al. (2002) than to any other, but, like the others, they have smaller areas than predicted by Somerville et al. (2002). Concerning the combined area of asperities, Murotani et al. (2008) and our results predict smaller areas than those obtained by Somerville et al. (2002). Concerning the area of largest asperity, the relationships obtained in this study are slightly smaller than those described by Somerville et al. (2002); this is a consistent result with the relationships of total rupture area and combined area of asperities. In general, the error estimates for the constrained equations derived in this study in all cases are smaller than those relationships compared here. This might suggest that the expressions obtained in this study could be appropriate for the simulations of strong ground motion for a specific scenario of earthquake slip in the region. Also, these results could be an indication that the relationships vary depending on a specific subduction tectonic region. On the other hand, Aguirre and Irikura (2007) estimated the source area for 31 Mexican earthquakes using corner frequencies; these areas show close resemblance with those predicted by the relationships derived in this study. Based on these findings, an important implication is that two different methodologies to determine the total area of asperities based on either low‐ or high‐frequency data generate similar results.Online Material: Figures of fault models. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.