Constraining the Source of the Mw 8.1 Chiapas, Mexico Earthquake of 8 September 2017 Using Teleseismic and Tsunami Observations
| العنوان: | Constraining the Source of the Mw 8.1 Chiapas, Mexico Earthquake of 8 September 2017 Using Teleseismic and Tsunami Observations |
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| المؤلفون: | Mohammad Heidarzadeh, Takeo Ishibe, Tomoya Harada |
| المصدر: | Pure and Applied Geophysics. 175:1925-1938 |
| بيانات النشر: | Springer Science and Business Media LLC, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Seismic gap, 010504 meteorology & atmospheric sciences, Fault plane, Slip (materials science), 010502 geochemistry & geophysics, 01 natural sciences, Geophysics, Coulomb stress transfer, Geochemistry and Petrology, Interplate earthquake, Intraplate earthquake, Submarine pipeline, Source model, Geology, Seismology, 0105 earth and related environmental sciences |
| الوصف: | Copyright © The Author(s) 2018. The September 2017 Chiapas (Mexico) normal-faulting intraplate earthquake (Mw 8.1) occurred within the Tehuantepec seismic gap offshore Mexico. We constrained the finite-fault slip model of this great earthquake using teleseismic and tsunami observations. First, teleseismic body-wave inversions were conducted for both steep (NP-1) and low-angle (NP-2) nodal planes for rupture velocities (Vr) of 1.5–4.0 km/s. Teleseismic inversion guided us to NP-1 as the actual fault plane, but was not conclusive about the best Vr. Tsunami simulations also confirmed that NP-1 is favored over NP-2 and guided the Vr = 2.5 km/s as the best source model. Our model has a maximum and average slips of 13.1 and 3.7 m, respectively, over a 130 km × 80 km fault plane. Coulomb stress transfer analysis revealed that the probability for the occurrence of a future large thrust interplate earthquake at offshore of the Tehuantepec seismic gap had been increased following the 2017 Chiapas normal-faulting intraplate earthquake. |
| وصف الملف: | Print-Electronic |
| تدمد: | 1420-9136 0033-4553 |
| DOI: | 10.1007/s00024-018-1837-6 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::046208717f93eb4514e3b1c51535e2b2 https://doi.org/10.1007/s00024-018-1837-6 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....046208717f93eb4514e3b1c51535e2b2 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14209136 00334553 |
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| DOI: | 10.1007/s00024-018-1837-6 |