Ground deformation monitoring of the eruption offshore Mayotte

被引：6

作者：

Peltier, Aline ^{[1
,2
]}

Saur, Sebastien ^{[3
]}

Ballu, Valerie ^{[4
]}

Beauducel, Francois ^{[1
]}

Briole, Pierre ^{[5
]}

Chanard, Kristel ^{[1
]}

Dausse, Denis ^{[4
]}

De Chabalier, Jean-Bernard ^{[1
]}

Grandin, Raphael ^{[1
]}

Rouffiac, Perrine ^{[3
]}

Tranchant, Yann-Treden ^{[4
]}

de Berc, Maxime Bes ^{[6
]}

Besancon, Simon ^{[1
]}

Boissier, Patrice ^{[1
,2
]}

Broucke, Celeste ^{[1
,7
]}

Brunet, Christophe ^{[1
,2
]}

Canjamale, Kevin ^{[1
,2
]}

Carme, Erwan ^{[8
]}

Catherine, Philippe ^{[1
,2
]}

Colombain, Alison ^{[9
]}

Crawford, Wayne ^{[1
]}

Daniel, Romuald ^{[1
]}

Dectot, Gregoire ^{[8
]}

Desfete, Nicolas ^{[1
,2
]}

Doubre, Cecile ^{[6
]}

Dumouch, Tom ^{[1
]}

Griot, Cyprien ^{[1
,2
]}

Grunberg, Marc ^{[7
]}

Jund, Helene ^{[7
]}

Kowalski, Philippe ^{[1
,2
]}

Lauret, Frederic ^{[1
,2
]}

Lebreton, Jacques ^{[1
,2
]}

Pesqueira, Frederick ^{[1
,2
]}

Tronel, Frederic ^{[8
]}

Valty, Pierre ^{[3
]}

van der Woerd, Jerome ^{[6
]}

机构：

[1] Univ Paris Cite, Inst Phys Globe Paris, CNRS, F-75005 Paris, France

[2] Inst Phys Globe Paris, Observ Volcanol Piton Fournaise, F-97418 La Plaine Des Cafres, France

[3] Inst Natl Informat Geog & Forestiere, Serv Geodesie & Metrol, F-94165 St Mande, France

[4] La Rochelle Univ, CNRS, UMR7266, Littoral Environm & Soc LIENSs, La Rochelle, France

[5] PSL Res Univ, Ecole Normale Super, Lab Geol, UMR 8538,CNRS, F-75231 Paris, France

[6] Univ Strasbourg, CNRS, Inst Terre & Environm Strasbourg, UMR7063, F-67000 Strasbourg, France

[7] Univ Strasbourg, CNRS, EOST UAR 830, 5 Rue Rene Descartes, F-67084 Strasbourg, France

[8] Bur Rech Geol & Minieres DAT OMR MAY, BP363, F-97646 Mamoudzou, Mayotte, France

[9] Bur Rech Geol & Minieres GR GBS, BP 36009, F-45060 Orleans, France

来源：

COMPTES RENDUS GEOSCIENCE | 2022年 / 354卷

关键词：

GNSS; Pressure gauge; Volcano deformation; Mayotte; GRACE modeling; Joint inversion; FaniMaore; EARTH; GRACE;

D O I：

10.5802/crgeos.176

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In May 2018, the Mayotte island, located in the Indian Ocean, was affected by an unprecedented seismic crisis, followed by anomalous on-land surface displacements in July 2018. Cumulatively from July 1, 2018 to December 31, 2021, the horizontal displacements were approximately 21 to 25 cm eastward, and subsidence was approximately 10 to 19 cm. The study of data recorded by the on-land GNSS network, and theirmodeling coupled with data from ocean bottompressure gauges, allowed us to propose a magmatic origin of the seismic crisis with the deflation of a deep source east of Mayotte, that was confirmed inMay 2019 by the discovery of a submarine eruption, 50 km offshore of Mayotte [Feuillet et al., 2021]. Despite a non-optimal network geometry and receivers located far from the source, the GNSS data allowed following the deep dynamics of magma transfer, via the volume flow monitoring, throughout the eruption.

引用

页码：171 / 193

页数：23

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