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Cruz-Atienza VM, Tago J, Villafuerte C, Wei M, Garza-Girón R, Dominguez LA, Kostoglodov V, Nishimura T, Franco SI, Real J, Santoyo MA, Ito Y, Kazachkina E. Short-term interaction between silent and devastating earthquakes in Mexico. Nat Commun 2021; 12:2171. [PMID: 33846327 PMCID: PMC8042113 DOI: 10.1038/s41467-021-22326-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 03/11/2021] [Indexed: 02/01/2023] Open
Abstract
Either the triggering of large earthquakes on a fault hosting aseismic slip or the triggering of slow slip events (SSE) by passing seismic waves involve seismological questions with important hazard implications. Just a few observations plausibly suggest that such interactions actually happen in nature. In this study we show that three recent devastating earthquakes in Mexico are likely related to SSEs, describing a cascade of events interacting with each other on a regional scale via quasi-static and/or dynamic perturbations across the states of Guerrero and Oaxaca. Such interaction seems to be conditioned by the transient memory of Earth materials subject to the "traumatic" stress produced by seismic waves of the great 2017 (Mw8.2) Tehuantepec earthquake, which strongly disturbed the SSE cycles over a 650 km long segment of the subduction plate interface. Our results imply that seismic hazard in large populated areas is a short-term evolving function of seismotectonic processes that are often observable.
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Affiliation(s)
- V. M. Cruz-Atienza
- grid.9486.30000 0001 2159 0001Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - J. Tago
- grid.9486.30000 0001 2159 0001Facultad de Ingeniería, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - C. Villafuerte
- grid.9486.30000 0001 2159 0001Posgrado en Ciencias de la Tierra, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - M. Wei
- grid.20431.340000 0004 0416 2242Graduate School of Oceanography, University of Rhode Island, Narragansett, USA
| | - R. Garza-Girón
- grid.205975.c0000 0001 0740 6917Department of Earth and Planetary Sciences, University of California, Santa Cruz, USA
| | - L. A. Dominguez
- grid.9486.30000 0001 2159 0001Escuela Nacional de Estudios Superiores, Universidad Nacional Autónoma de México, Morelia, Mexico
| | - V. Kostoglodov
- grid.9486.30000 0001 2159 0001Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - T. Nishimura
- grid.258799.80000 0004 0372 2033Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
| | - S. I. Franco
- grid.9486.30000 0001 2159 0001Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - J. Real
- grid.9486.30000 0001 2159 0001Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - M. A. Santoyo
- grid.9486.30000 0001 2159 0001Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Y. Ito
- grid.258799.80000 0004 0372 2033Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
| | - E. Kazachkina
- grid.9486.30000 0001 2159 0001Posgrado en Ciencias de la Tierra, Universidad Nacional Autónoma de México, Mexico City, Mexico
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