A Source Study of the Mw 7.0 Acapulco, Mexico, Earthquake of 8 September 2021
Autor: | Arturo Iglesias, Shri K. Singh, Oscar Castro-Artola, Xyoli Pérez-Campos, Raul D. Corona-Fernandez, Miguel A. Santoyo, Víctor H. Espíndola, Danny Arroyo, Sara I. Franco |
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Rok vydání: | 2022 |
Předmět: | |
Zdroj: | Seismological Research Letters. 93:3205-3218 |
ISSN: | 1938-2057 0895-0695 |
DOI: | 10.1785/0220220124 |
Popis: | The Acapulco earthquake of 2021 broke a segment of the southeast Guerrero seismic gap along the Mexican subduction thrust. The rupture initiated offshore Acapulco (16.770° N, 99.942° W) and propagated down-dip toward northeast. This source directivity is confirmed from both (1) an analysis of local and regional recordings as a function of azimuth and (2) kinematic inversion of near-source, band-pass filtered (0.025–0.5 Hz) displacement seismograms and Global Positioning System static coseismic displacement vectors. The inversion reveals little slip near the hypocenter ( |
Databáze: | OpenAIRE |
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