Unprecedented seismic swarm in the Maurienne valley (2017–2019) observed by the SISmalp Alpine seismic network: operational monitoring and management
In 2017–2019, a seismic swarm was triggered in the Maurienne valley (French Alps), with more than 5000 events detected by the regional SISmalp network. The population, who asked SISmalp to provide information on the processes and the associated risk, felt many earthquakes. In a post-L’Aquila trial c...
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| Format: | Article |
| Language: | English |
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Académie des sciences
2021-07-01
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| Series: | Comptes Rendus. Géoscience |
| Subjects: | |
| Online Access: | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.70/ |
| _version_ | 1797651309652869120 |
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| author | Guéguen, Philippe Janex, Gael Nomade, Jérôme Langlais, Mickael Helmstetter, Agnès Coutant, Olivier Schwartz, Stéphane Dollet, Cyrielle |
| author_facet | Guéguen, Philippe Janex, Gael Nomade, Jérôme Langlais, Mickael Helmstetter, Agnès Coutant, Olivier Schwartz, Stéphane Dollet, Cyrielle |
| author_sort | Guéguen, Philippe |
| collection | DOAJ |
| description | In 2017–2019, a seismic swarm was triggered in the Maurienne valley (French Alps), with more than 5000 events detected by the regional SISmalp network. The population, who asked SISmalp to provide information on the processes and the associated risk, felt many earthquakes. In a post-L’Aquila trial context, we conducted a reflection on the scientific and social operational management of the crisis. The geological and tectonic analysis, the deployment of a temporary seismic network, an automatic double-difference relocation procedure (HypoDD) after clustering earthquakes, as well as the interactions with the population and the risk managers, have been carried out jointly. The length and unpredictability of the sequence complicated crisis management and the relations between local authorities and civil protection. The involvement of SISmalp, beyond its main scientific and observation prerogatives, has contributed to moderate the fears of the population by providing scientific explanations. |
| first_indexed | 2024-03-11T16:14:09Z |
| format | Article |
| id | doaj.art-5d24afdac26d475a9aeabc64c02c1c55 |
| institution | Directory Open Access Journal |
| issn | 1778-7025 |
| language | English |
| last_indexed | 2024-03-11T16:14:09Z |
| publishDate | 2021-07-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Géoscience |
| spelling | doaj.art-5d24afdac26d475a9aeabc64c02c1c552023-10-24T14:24:12ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252021-07-01353S151753410.5802/crgeos.7010.5802/crgeos.70Unprecedented seismic swarm in the Maurienne valley (2017–2019) observed by the SISmalp Alpine seismic network: operational monitoring and managementGuéguen, Philippe0https://orcid.org/0000-0001-6362-0694Janex, Gael1Nomade, Jérôme2https://orcid.org/0000-0003-2211-5960Langlais, Mickael3https://orcid.org/0000-0003-0597-8289Helmstetter, Agnès4Coutant, Olivier5https://orcid.org/0000-0001-7619-8760Schwartz, Stéphane6Dollet, Cyrielle7ISTerre, Université Grenoble Alpes, CNRS, Université Savoie Mont-Blanc, IRD, Université Gustave Eiffel, FranceISTerre, Université Grenoble Alpes, CNRS, Université Savoie Mont-Blanc, IRD, Université Gustave Eiffel, FranceISTerre, Université Grenoble Alpes, CNRS, Université Savoie Mont-Blanc, IRD, Université Gustave Eiffel, FranceISTerre, Université Grenoble Alpes, CNRS, Université Savoie Mont-Blanc, IRD, Université Gustave Eiffel, FranceISTerre, Université Grenoble Alpes, CNRS, Université Savoie Mont-Blanc, IRD, Université Gustave Eiffel, FranceISTerre, Université Grenoble Alpes, CNRS, Université Savoie Mont-Blanc, IRD, Université Gustave Eiffel, FranceISTerre, Université Grenoble Alpes, CNRS, Université Savoie Mont-Blanc, IRD, Université Gustave Eiffel, FranceISTerre, Université Grenoble Alpes, CNRS, Université Savoie Mont-Blanc, IRD, Université Gustave Eiffel, FranceIn 2017–2019, a seismic swarm was triggered in the Maurienne valley (French Alps), with more than 5000 events detected by the regional SISmalp network. The population, who asked SISmalp to provide information on the processes and the associated risk, felt many earthquakes. In a post-L’Aquila trial context, we conducted a reflection on the scientific and social operational management of the crisis. The geological and tectonic analysis, the deployment of a temporary seismic network, an automatic double-difference relocation procedure (HypoDD) after clustering earthquakes, as well as the interactions with the population and the risk managers, have been carried out jointly. The length and unpredictability of the sequence complicated crisis management and the relations between local authorities and civil protection. The involvement of SISmalp, beyond its main scientific and observation prerogatives, has contributed to moderate the fears of the population by providing scientific explanations.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.70/AlpsSeismic swarmHypoDDBelledonne border faultSeismic riskMaurienneAlps |
| spellingShingle | Guéguen, Philippe Janex, Gael Nomade, Jérôme Langlais, Mickael Helmstetter, Agnès Coutant, Olivier Schwartz, Stéphane Dollet, Cyrielle Unprecedented seismic swarm in the Maurienne valley (2017–2019) observed by the SISmalp Alpine seismic network: operational monitoring and management Comptes Rendus. Géoscience Alps Seismic swarm HypoDD Belledonne border fault Seismic risk Maurienne Alps |
| title | Unprecedented seismic swarm in the Maurienne valley (2017–2019) observed by the SISmalp Alpine seismic network: operational monitoring and management |
| title_full | Unprecedented seismic swarm in the Maurienne valley (2017–2019) observed by the SISmalp Alpine seismic network: operational monitoring and management |
| title_fullStr | Unprecedented seismic swarm in the Maurienne valley (2017–2019) observed by the SISmalp Alpine seismic network: operational monitoring and management |
| title_full_unstemmed | Unprecedented seismic swarm in the Maurienne valley (2017–2019) observed by the SISmalp Alpine seismic network: operational monitoring and management |
| title_short | Unprecedented seismic swarm in the Maurienne valley (2017–2019) observed by the SISmalp Alpine seismic network: operational monitoring and management |
| title_sort | unprecedented seismic swarm in the maurienne valley 2017 2019 observed by the sismalp alpine seismic network operational monitoring and management |
| topic | Alps Seismic swarm HypoDD Belledonne border fault Seismic risk Maurienne Alps |
| url | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.70/ |
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