FN Archimer Export Format
PT J
TI Capturing Mayotte's deep magmatic plumbing system and its spatiotemporal evolution with volcano-tectonic seismicity
BT 
AF LAVAYSSIERE, Aude
   Retailleau, Lise
AS 1:1,2;2:1,3;
FF 1:;2:;
C1 Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, 1 rue Jussieu, F-75005 Paris, France.
   Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR6538, F-29280 Plouzane, France.
   Observatoire volcanologique du Piton de la Fournaise, Institut de Physique du Globe de Paris, 14 RN3 - Km 27, F-97418 La Plaine des Cafres, La Réunion, France.
C2 UNIV PARIS CITE, FRANCE
   UBO, FRANCE
   IPGP, FRANCE
SI BREST
SE PDG-REM-GEOOCEAN
UM GEO-OCEAN
IN DOAJ
TC 0
UR https://archimer.ifremer.fr/doc/00854/96544/104949.pdf
LA English
DT Article
CR MAYOBS
   MAYOBS1
BO Marion Dufresne
DE ;Volcano-tectonic seismicity;Mayotte;Submarine volcano;Deep magmatic plumbing system;Temporal evolution
AB Since 2018, an unexpected number of earthquakes have been occurring offshore Mayotte, in the Mozambique Channel. They are linked to the eruption of the Fani Maoré submarine volcano. Using a recently developed comprehensive automatic catalog, we explore two years of the volcano-tectonic (VT) seismicity between March 2019 and March 2021, and analyse in detail the active structures of the magmatic plumbing system using ~33,000 events. The VT earthquakes highlight three magma storage zones and two aseismic conduits that have never been observed before. The temporal evolution of the seismicity reveals a probable regime change in March 2020. While before, the plumbing system reacted to the drainage of magma from a deep reservoir and to the migration of magma towards the seafloor, it is now responding to new migrations of fluids and to the redistribution of the stress-load across the system's pre-existing faults. This analysis is key to better understanding long-term volcanism worldwide. 
PY 2023
PD SEP
SO Volcanica
SN 2610-3540
PU Volcanica
VL 6
IS 2
DI 10.30909/vol.06.02.331344
ID 96544
ER

EF