preprints_ui: yq4dt_v1
Data license: ODbL (database) & original licenses (content) · Data source: Open Science Framework
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| yq4dt_v1 | EXCEPTIONAL GROUND MOTION DURING THE SHALLOW Mw 4.9 2019 LE TEIL EARTHQUAKE, FRANCE | On November 11, 2019, an unusually damaging Mw4.9 earthquake occurred in the south east of France within the lower Rhône river valley, an industrial region hosting several operating nuclear power plants. This event is exceptional considering its very shallow depth (<1 km). Based on farfield seismological observations, we demonstrate that the rupture properties are consistent with the ones commonly observed for large deeper earthquakes, implying that the near-surface faulting generated strong high-frequency seismic waves. In the absence of strong motion sensors in the fault vicinity, we perform numerical predictions of the ground acceleration on a virtual array of near-fault stations, that matches with the locations of independent quantitative estimations from in-situ observations of displaced objects (natural and anthropic). Both numerical and in-situ analyses converge toward an exceptional level of ground acceleration in the fault vicinity, exceeding gravity, and at the origin of the damage. This dramatically changes the perception of the impacts of superficial moderate earthquakes on seismic hazard assessment. | 2020-11-30T15:57:22.156264 | 2021-01-02T15:47:15.467180 | 2020-12-02T11:18:07.086645 | 2020-11-29T23:00:00 | frenxiv | 1 | accepted | 1 | 1 | https://doi.org/10.31226/osf.io/yq4dt | CC-By Attribution 4.0 International | Le Teil earthquake; Rhône valley; ground motion; seismic rupture | ["Le Teil earthquake", "Rh\u00f4ne valley", "ground motion", "seismic rupture"] | Mathieu Causse; Cécile Cornou; Emeline Maufroy; jean-robert grasso; Laurent Baillet; Elias el Haber | [{"id": "jyabp", "name": "Mathieu Causse", "index": 0, "orcid": "0000-0003-2865-1190", "bibliographic": true}, {"id": "2azpd", "name": "C\u00e9cile Cornou", "index": 1, "orcid": "0000-0003-4301-2979", "bibliographic": true}, {"id": "jm483", "name": "Emeline Maufroy", "index": 2, "orcid": null, "bibliographic": true}, {"id": "fpqgh", "name": "jean-robert grasso", "index": 3, "orcid": "0000-0002-9580-7864", "bibliographic": true}, {"id": "e9gra", "name": "Laurent Baillet", "index": 4, "orcid": null, "bibliographic": true}, {"id": "mk3f5", "name": "Elias el Haber", "index": 5, "orcid": null, "bibliographic": true}] | Mathieu Causse | Physical Sciences and Mathematics; Earth Sciences; Geophysics and Seismology | [{"id": "5a57dc25076808000d81574c", "text": "Physical Sciences and Mathematics"}, {"id": "5a57dc2e076808000d815888", "text": "Earth Sciences"}, {"id": "5a57dc31076808000d8158ff", "text": "Geophysics and Seismology"}] | https://osf.io/download/5fc51674ab651803e0b136a7 | 0 | available | not_applicable | [] | 2025-04-09T20:03:53.804899 |