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Title: Short-term interaction between silent and devastating earthquakes in Mexico
Authors: Cruz-Atienza, V. M.
Tago, J.
Villafuerte, C.
Wei, M.
Garza-Girón, R.
Dominguez, L. A.
Kostoglodov, V.
Nishimura, T.
Franco, S. I.
Real, J.
Santoyo, M. A.
Ito, Y.
Kazachkina, E.
Author's alias: 西村, 卓也
伊藤, 喜宏
Keywords: Natural hazards
Seismology
Tectonics
Issue Date: 2021
Publisher: Springer Nature
Journal title: Nature Communications
Volume: 12
Thesis number: 2171
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.
Description: 大地震とスロースリップの相互作用を解明 --メキシコにおける3つの大地震の連鎖的発生のメカニズム--. 京都大学プレスリリース. 2021-04-12.
Rights: © The Author(s) 2021
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
URI: http://hdl.handle.net/2433/262711
DOI(Published Version): 10.1038/s41467-021-22326-6
Related Link: https://www.kyoto-u.ac.jp/ja/research-news/2021-04-15
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