Characteristics and possible origins of the seismicity in northwestern France
The macroseismic and instrumental observations accumulated by the Bureau Central Sismologique Français and other national agencies over the last 100 years show that the northwestern part of metropolitan France is affected by an apparently diffuse and moderate intraplate seismicity. Far from any plat...
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| Format: | Article |
| Language: | English |
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Académie des sciences
2021-11-01
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| Series: | Comptes Rendus. Géoscience |
| Subjects: | |
| Online Access: | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.86/ |
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| author | Beucler, Éric Bonnin, Mickaël Hourcade, Céline Van Vliet-Lanoë, Brigitte Perrin, Clément Provost, Ludmila Mocquet, Antoine Battaglia, Jean Geoffroy, Laurent Steer, Philippe Le Gall, Bernard Douchain, Jean-Michel Fligiel, Damien Gernigon, Pierrick Delouis, Bertrand Perrot, Julie Mazzotti, Stéphane Mazet-Roux, Gilles Lambotte, Sophie Grunberg, Marc Vergne, Jérôme Clément, Christophe Calais, Éric Deverchère, Jacques Longuevergne, Laurent Duperret, Anne Roques, Clément Kaci, Tassadit Authemayou, Christine |
| author_facet | Beucler, Éric Bonnin, Mickaël Hourcade, Céline Van Vliet-Lanoë, Brigitte Perrin, Clément Provost, Ludmila Mocquet, Antoine Battaglia, Jean Geoffroy, Laurent Steer, Philippe Le Gall, Bernard Douchain, Jean-Michel Fligiel, Damien Gernigon, Pierrick Delouis, Bertrand Perrot, Julie Mazzotti, Stéphane Mazet-Roux, Gilles Lambotte, Sophie Grunberg, Marc Vergne, Jérôme Clément, Christophe Calais, Éric Deverchère, Jacques Longuevergne, Laurent Duperret, Anne Roques, Clément Kaci, Tassadit Authemayou, Christine |
| author_sort | Beucler, Éric |
| collection | DOAJ |
| description | The macroseismic and instrumental observations accumulated by the Bureau Central Sismologique Français and other national agencies over the last 100 years show that the northwestern part of metropolitan France is affected by an apparently diffuse and moderate intraplate seismicity. Far from any plate boundary, well-documented inherited structures, such as the Armorican shear zone network, the Sillon Houiller, and the normal faults related to the Atlantic ocean margin, likely exert significant control on the regional seismicity pattern. However, in the absence of a clearly measurable strain field, processes other than far-field tectonic stress loading such as erosion, gravitational potential energy, and/or hydraulic loadings can co-exist, but their respective influence on the current seismicity is debated and remains to be fully addressed. Reliable detection/location of low-to-moderate magnitude events is one of the most important challenges in the near future to better understand the processes that control this intraplate seismicity. As shown here for a limited region, this issue can be achieved positively, thanks to the new Résif-Epos network, in conjunction with sophisticated algorithms for both earthquakes’ detection and discrimination. |
| first_indexed | 2024-03-11T16:13:55Z |
| format | Article |
| id | doaj.art-1797fbf630fc4f2293c162d92476da15 |
| institution | Directory Open Access Journal |
| issn | 1778-7025 |
| language | English |
| last_indexed | 2024-03-11T16:13:55Z |
| publishDate | 2021-11-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Géoscience |
| spelling | doaj.art-1797fbf630fc4f2293c162d92476da152023-10-24T14:24:12ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252021-11-01353S1537710.5802/crgeos.8610.5802/crgeos.86Characteristics and possible origins of the seismicity in northwestern FranceBeucler, Éric0https://orcid.org/0000-0003-2605-4990Bonnin, Mickaël1https://orcid.org/0000-0003-2909-1375Hourcade, Céline2Van Vliet-Lanoë, Brigitte3https://orcid.org/0000-0003-1183-0846Perrin, Clément4https://orcid.org/0000-0002-7200-5682Provost, Ludmila5Mocquet, Antoine6https://orcid.org/0000-0002-7832-3905Battaglia, Jean7https://orcid.org/0000-0002-9513-1200Geoffroy, Laurent8Steer, Philippe9https://orcid.org/0000-0003-2710-6553Le Gall, Bernard10Douchain, Jean-Michel11Fligiel, Damien12Gernigon, Pierrick13Delouis, Bertrand14https://orcid.org/0000-0003-1147-5872Perrot, Julie15Mazzotti, Stéphane16https://orcid.org/0000-0003-2514-4310Mazet-Roux, Gilles17https://orcid.org/0000-0002-8462-7913Lambotte, Sophie18https://orcid.org/0000-0003-1078-3419Grunberg, Marc19https://orcid.org/0000-0002-1307-7790Vergne, Jérôme20https://orcid.org/0000-0003-1731-9360Clément, Christophe21Calais, Éric22https://orcid.org/0000-0002-5935-8117Deverchère, Jacques23https://orcid.org/0000-0001-5138-7821Longuevergne, Laurent24Duperret, Anne25https://orcid.org/0000-0002-6960-4668Roques, Clément26Kaci, Tassadit27Authemayou, Christine28https://orcid.org/0000-0001-7318-1832Laboratoire de Planétologie et Géodynamique (LPG), CNRS-6112, Université de Nantes, Université d’Angers, France; Observatoire des Sciences de l’Univers Nantes-Atlantique (OSUNA), CNRS-3281, Université de Nantes, FranceLaboratoire de Planétologie et Géodynamique (LPG), CNRS-6112, Université de Nantes, Université d’Angers, France; Observatoire des Sciences de l’Univers Nantes-Atlantique (OSUNA), CNRS-3281, Université de Nantes, FranceLaboratoire de Planétologie et Géodynamique (LPG), CNRS-6112, Université de Nantes, Université d’Angers, FranceUniv Brest, CNRS, LGO UMR6538, IUEM, Place Nicolas Copernic, 29280 Plouzané, FranceLaboratoire de Planétologie et Géodynamique (LPG), CNRS-6112, Université de Nantes, Université d’Angers, France; Observatoire des Sciences de l’Univers Nantes-Atlantique (OSUNA), CNRS-3281, Université de Nantes, FranceInstitut de Radioprotection et Sûreté Nucléaire (IRSN), PSE-ENV, SCAN, BERSSIN, FranceLaboratoire de Planétologie et Géodynamique (LPG), CNRS-6112, Université de Nantes, Université d’Angers, FranceUniversité Clermont Auvergne, CNRS, IRD, OPGC, Laboratoire Magmas et Volcans, F-63000 Clermont-Ferrand, FranceUniv Brest, CNRS, LGO UMR6538, IUEM, Place Nicolas Copernic, 29280 Plouzane, FranceUniv Rennes, CNRS, Géosciences Rennes -UMR 6118, F-35000 Rennes, FranceUniv Brest, CNRS, LGO UMR6538, IUEM, Place Nicolas Copernic, 29280 Plouzane, FranceObservatoire de Physique du Globe de Clermont-Ferrand, Université Clermont Auvergne - CNRS, Aubière, FranceObservatoire des Sciences de l’Univers Nantes-Atlantique (OSUNA), CNRS-3281, Université de Nantes, FranceObservatoire des Sciences de l’Univers Nantes-Atlantique (OSUNA), CNRS-3281, Université de Nantes, FranceUniversité Côte d’Azur, CNRS, Observatoire de la Côte d’Azur, IRD, Géoazur, FranceUniv Brest, CNRS, LGO UMR6538, IUEM, Place Nicolas Copernic, 29280 Plouzane, FranceGéosciences Montpellier, Université de Montpellier, CNRS, Université des Antilles, FranceCEA, DAM, DIF, Arpajon, FranceEOST, Université de Strasbourg/CNRS, Strasbourg, France; ITES, Université de Strasbourg/CNRS, Strasbourg, FranceEOST, Université de Strasbourg/CNRS, Strasbourg, FranceEOST, Université de Strasbourg/CNRS, Strasbourg, France; ITES, Université de Strasbourg/CNRS, Strasbourg, FranceInstitut de Radioprotection et Sûreté Nucléaire (IRSN), PSE-ENV, SCAN, BERSSIN, FranceDepartment of Geosciences, École normale supérieure, CNRS UMR 8538, PSL Université, France; Institut de Recherche pour le Développement, Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS Géoazur, FranceUniv Brest, CNRS, LGO UMR6538, IUEM, Place Nicolas Copernic, 29280 Plouzane, FranceUniv Rennes, CNRS, Géosciences Rennes -UMR 6118, F-35000 Rennes, FranceLaboratoire ondes et milieux complexes (LOMC), CNRS-6294, Université Le Havre Normandie, FranceUniv Rennes, CNRS, Géosciences Rennes -UMR 6118, F-35000 Rennes, FranceLaboratoire ondes et milieux complexes (LOMC), CNRS-6294, Université Le Havre Normandie, FranceUniv Brest, CNRS, LGO UMR6538, IUEM, Place Nicolas Copernic, 29280 Plouzane, FranceThe macroseismic and instrumental observations accumulated by the Bureau Central Sismologique Français and other national agencies over the last 100 years show that the northwestern part of metropolitan France is affected by an apparently diffuse and moderate intraplate seismicity. Far from any plate boundary, well-documented inherited structures, such as the Armorican shear zone network, the Sillon Houiller, and the normal faults related to the Atlantic ocean margin, likely exert significant control on the regional seismicity pattern. However, in the absence of a clearly measurable strain field, processes other than far-field tectonic stress loading such as erosion, gravitational potential energy, and/or hydraulic loadings can co-exist, but their respective influence on the current seismicity is debated and remains to be fully addressed. Reliable detection/location of low-to-moderate magnitude events is one of the most important challenges in the near future to better understand the processes that control this intraplate seismicity. As shown here for a limited region, this issue can be achieved positively, thanks to the new Résif-Epos network, in conjunction with sophisticated algorithms for both earthquakes’ detection and discrimination.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.86/Résif-EposBrittanyAuvergneSCRMagnitudeDetectionEarthquakeRésif-Epos |
| spellingShingle | Beucler, Éric Bonnin, Mickaël Hourcade, Céline Van Vliet-Lanoë, Brigitte Perrin, Clément Provost, Ludmila Mocquet, Antoine Battaglia, Jean Geoffroy, Laurent Steer, Philippe Le Gall, Bernard Douchain, Jean-Michel Fligiel, Damien Gernigon, Pierrick Delouis, Bertrand Perrot, Julie Mazzotti, Stéphane Mazet-Roux, Gilles Lambotte, Sophie Grunberg, Marc Vergne, Jérôme Clément, Christophe Calais, Éric Deverchère, Jacques Longuevergne, Laurent Duperret, Anne Roques, Clément Kaci, Tassadit Authemayou, Christine Characteristics and possible origins of the seismicity in northwestern France Comptes Rendus. Géoscience Résif-Epos Brittany Auvergne SCR Magnitude Detection Earthquake Résif-Epos |
| title | Characteristics and possible origins of the seismicity in northwestern France |
| title_full | Characteristics and possible origins of the seismicity in northwestern France |
| title_fullStr | Characteristics and possible origins of the seismicity in northwestern France |
| title_full_unstemmed | Characteristics and possible origins of the seismicity in northwestern France |
| title_short | Characteristics and possible origins of the seismicity in northwestern France |
| title_sort | characteristics and possible origins of the seismicity in northwestern france |
| topic | Résif-Epos Brittany Auvergne SCR Magnitude Detection Earthquake Résif-Epos |
| url | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.86/ |
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