2004/01/01 by Randall White, Juan Pablo Ligorría, Inés Cifuentes · 1 voice · 1 citation
Earth and Planetary Sciences · #Geological and Tectonic Studies in Latin America #earthquake and tectonic studies
paper · doi:10.1130/0-8137-2375-2.379
openalex publication_date 2004/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
We present a catalog of subduction zone earthquakes along the Pacific coast from central El Salvador to eastern Chiapas, Mexico, from 1526 to 2000. We estimate that the catalog is complete since 1690 for MS ≥7.4 thrust events and M ≥ 7.4 normal-faulting events within the upper 60 km of the down-going slab. New intensity maps were constructed for the 27 earthquakes since 1690, using mostly primary data sources. By calibrating with recent events we find that the long axis of the (MM) VII intensity contour for such large earthquakes well approximates the length and location of rupture along the subduction zone and can thus be used to estimate the locations and magnitudes of older events.