Ten year recurrence time between two major earthquakes affecting the same fault segment
International audience Earthquake ruptures stop when they encounter barriers impeding further propagation. These barriers can theoretically originate from changes of geometry or nature of the seismic faults or from a strong lowering of the tectonic stresses, typically due to the occurrence of a rece...
Published in: | Geophysical Research Letters |
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03581134 https://hal-insu.archives-ouvertes.fr/insu-03581134/document https://hal-insu.archives-ouvertes.fr/insu-03581134/file/Geophysical%20Research%20Letters%20-%202014%20-%20Vall%20e%20-%20Ten%20year%20recurrence%20time%20between%20two%20major%20earthquakes%20affecting%20the%20same.pdf https://doi.org/10.1002/2014GL059465 |
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ftinsu:oai:HAL:insu-03581134v1 2023-06-18T03:36:38+02:00 Ten year recurrence time between two major earthquakes affecting the same fault segment Vallée, Martin Satriano, Claudio Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) 2014 https://hal-insu.archives-ouvertes.fr/insu-03581134 https://hal-insu.archives-ouvertes.fr/insu-03581134/document https://hal-insu.archives-ouvertes.fr/insu-03581134/file/Geophysical%20Research%20Letters%20-%202014%20-%20Vall%20e%20-%20Ten%20year%20recurrence%20time%20between%20two%20major%20earthquakes%20affecting%20the%20same.pdf https://doi.org/10.1002/2014GL059465 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1002/2014GL059465 insu-03581134 https://hal-insu.archives-ouvertes.fr/insu-03581134 https://hal-insu.archives-ouvertes.fr/insu-03581134/document https://hal-insu.archives-ouvertes.fr/insu-03581134/file/Geophysical%20Research%20Letters%20-%202014%20-%20Vall%20e%20-%20Ten%20year%20recurrence%20time%20between%20two%20major%20earthquakes%20affecting%20the%20same.pdf BIBCODE: 2014GeoRL.41.2312V doi:10.1002/2014GL059465 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal-insu.archives-ouvertes.fr/insu-03581134 Geophysical Research Letters, 2014, 41, pp.2312-2318. ⟨10.1002/2014GL059465⟩ earthquake recurrence rerupture seismic gap hypothesis dynamic stress Scotia [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2014 ftinsu https://doi.org/10.1002/2014GL059465 2023-06-05T20:52:18Z International audience Earthquake ruptures stop when they encounter barriers impeding further propagation. These barriers can theoretically originate from changes of geometry or nature of the seismic faults or from a strong lowering of the tectonic stresses, typically due to the occurrence of a recent major earthquake. We show here that this latter mechanism can be ineffective at stopping rupture expansion: the 17 November 2013 magnitude 7.8 Scotia Sea earthquake has propagated into a 100 km long zone already ruptured 10 years ago by a magnitude 7.6 earthquake. Given the plate velocities between Scotia and Antarctic plates (8-9 mm/yr), simple recurrence models would have predicted that the segment affected by the 2003 earthquake could not be reruptured by a major earthquake during several hundreds of years. This earthquake pair indicates that the variations of the tectonic stress during the seismic history of the fault are small compared to the stresses dynamically generated by a large earthquake. Article in Journal/Newspaper Antarc* Antarctic Scotia Sea Institut national des sciences de l'Univers: HAL-INSU Antarctic Scotia Sea Geophysical Research Letters 41 7 2312 2318 |
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Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
earthquake recurrence rerupture seismic gap hypothesis dynamic stress Scotia [SDU]Sciences of the Universe [physics] |
spellingShingle |
earthquake recurrence rerupture seismic gap hypothesis dynamic stress Scotia [SDU]Sciences of the Universe [physics] Vallée, Martin Satriano, Claudio Ten year recurrence time between two major earthquakes affecting the same fault segment |
topic_facet |
earthquake recurrence rerupture seismic gap hypothesis dynamic stress Scotia [SDU]Sciences of the Universe [physics] |
description |
International audience Earthquake ruptures stop when they encounter barriers impeding further propagation. These barriers can theoretically originate from changes of geometry or nature of the seismic faults or from a strong lowering of the tectonic stresses, typically due to the occurrence of a recent major earthquake. We show here that this latter mechanism can be ineffective at stopping rupture expansion: the 17 November 2013 magnitude 7.8 Scotia Sea earthquake has propagated into a 100 km long zone already ruptured 10 years ago by a magnitude 7.6 earthquake. Given the plate velocities between Scotia and Antarctic plates (8-9 mm/yr), simple recurrence models would have predicted that the segment affected by the 2003 earthquake could not be reruptured by a major earthquake during several hundreds of years. This earthquake pair indicates that the variations of the tectonic stress during the seismic history of the fault are small compared to the stresses dynamically generated by a large earthquake. |
author2 |
Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Vallée, Martin Satriano, Claudio |
author_facet |
Vallée, Martin Satriano, Claudio |
author_sort |
Vallée, Martin |
title |
Ten year recurrence time between two major earthquakes affecting the same fault segment |
title_short |
Ten year recurrence time between two major earthquakes affecting the same fault segment |
title_full |
Ten year recurrence time between two major earthquakes affecting the same fault segment |
title_fullStr |
Ten year recurrence time between two major earthquakes affecting the same fault segment |
title_full_unstemmed |
Ten year recurrence time between two major earthquakes affecting the same fault segment |
title_sort |
ten year recurrence time between two major earthquakes affecting the same fault segment |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03581134 https://hal-insu.archives-ouvertes.fr/insu-03581134/document https://hal-insu.archives-ouvertes.fr/insu-03581134/file/Geophysical%20Research%20Letters%20-%202014%20-%20Vall%20e%20-%20Ten%20year%20recurrence%20time%20between%20two%20major%20earthquakes%20affecting%20the%20same.pdf https://doi.org/10.1002/2014GL059465 |
geographic |
Antarctic Scotia Sea |
geographic_facet |
Antarctic Scotia Sea |
genre |
Antarc* Antarctic Scotia Sea |
genre_facet |
Antarc* Antarctic Scotia Sea |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal-insu.archives-ouvertes.fr/insu-03581134 Geophysical Research Letters, 2014, 41, pp.2312-2318. ⟨10.1002/2014GL059465⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2014GL059465 insu-03581134 https://hal-insu.archives-ouvertes.fr/insu-03581134 https://hal-insu.archives-ouvertes.fr/insu-03581134/document https://hal-insu.archives-ouvertes.fr/insu-03581134/file/Geophysical%20Research%20Letters%20-%202014%20-%20Vall%20e%20-%20Ten%20year%20recurrence%20time%20between%20two%20major%20earthquakes%20affecting%20the%20same.pdf BIBCODE: 2014GeoRL.41.2312V doi:10.1002/2014GL059465 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/2014GL059465 |
container_title |
Geophysical Research Letters |
container_volume |
41 |
container_issue |
7 |
container_start_page |
2312 |
op_container_end_page |
2318 |
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1769007352011292672 |