Teleseismic finite-fault slip models of Mexico subduction earthquakes: A 44-year catalog
Modelos de deslizamiento de falla finita telesísmicos de los sismos de subducción en México: Un catálogo de 44 años
Carlos Mendoza1,*, María del Rosario Martínez López2
1 Instituto de Geociencias, Campus Juriquilla, Universidad Nacional Autónoma de México. Blv. Juriquilla 3001, Juriquilla La Mesa, 76230, Juriquilla, Querétaro, México.
2 Instituto de Geofísica, Universidad Nacional Autónoma de México. Circuito de la Investigación Científica, Ciudad Universitaria, Coyoacán, 04510, CDMX, México.
* Corresponding author: (C. Mendoza) This email address is being protected from spambots. You need JavaScript enabled to view it.
How to cite this article:
Mendoza, C., & Martínez López, M. R. (2026). Teleseismic finite-fault slip models of Mexico subduction earthquakes: A 44-year catalog: Boletín de la Sociedad Geológica Mexicana, 78(2), N271025. https://doi.org/10.18268/BSGM2026v78n2N271025
Manuscript received: August 12, 2025. Corrected manuscript received: October 20, 2025. Manuscript accepted: October 25, 2025.
ABSTRACT
Body waves of large earthquakes occurring along the Cocos-North America plate margin are recorded by high-quality digital instruments that can be used to derive an image of the coseismic rupture. Waveforms recorded at teleseismic distances for the fourteen Mw ≥ 7 thrust earthquakes that occurred between 1978 and 1921 in the Mexico subduction zone have been previously analyzed to recover the distribution of coseismic slip using a kinematic, finite-fault inversion scheme. The slip models obtained in these studies are presented here in the form of a 44-year catalog that documents the source parameters used in each of the inversions, including the fault dimensions and geometry, the hypocenter depth, the number of subfaults, and the number and duration of time windows used to discretize the dislocation rise time.
Keywords: teleseismic body-waves, thrust earthquakes, coseismic slip, Mexico subduc-tion zone.