Citation:

PANGAEA.937861

Name: Offshore Mayotte Volcanic Plumbing Revealed by Local Passive Tomography: Seismic Data
Published: 2021-11-04
License: https://creativecommons.org/licenses/by/4.0/
Keywords: active volcano; Earthquake tomography; Indian Ocean; Mayotte; Volcano seismology

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Abstract:

A new submarine volcano has been discovered offshore Mayotte, a part of the Comoros volcanic archipelago located between Africa and Madagascar. Regarding this seismo-volcanic activity, a 3-D passive tomography was conducted, in order to determine the structure of the volcanic plumbing system (Foix et al., 2021). Using > 3,000 earthquakes from an ongoing monitoring effort, and a 1D velocity model determined onboard, we jointly inverted for velocity structures, earthquake locations, origin times, and station corrections using LOTOS software . We are sharing here the 3-D P and S velocity models and 3-D output earthquake locations.

Keyword(s):

active volcano; Earthquake tomography; Indian Ocean; Mayotte; Volcano seismology

Related to:

Foix, Oceane; Aiken, Chastity; Saurel, Jean-Marie; Feuillet, Nathalie; Jorry, Stephan; Rinnert, Emmanuel; Thinon, Isabelle (2021): Offshore Mayotte volcanic plumbing revealed by local passive tomography. Journal of Volcanology and Geothermal Research, 420, 107395, https://doi.org/10.1016/j.jvolgeores.2021.107395

Project(s):

MAYOBS - French Oceanographic cruises (MAYOBS)

Coverage:

Latitude: -12.900000 * Longitude: 45.716700

Event(s):

Mayotte_submarine_volcano * Latitude: -12.900000 * Longitude: 45.716700 * Comment: height: at least 800 m (June 2021); depth at the base of the eruptive site: -3500 m

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator
1	File content	Content		Foix, Oceane
2	Binary Object (Media Type)	Binary (Type)		Foix, Oceane
3	Binary Object (File Size)	Binary (Size)	Bytes	Foix, Oceane
4	Binary Object (Character Set)	Binary (Charset)		Foix, Oceane
5	Binary Object (MD5 Hash)	Binary (Hash)		Foix, Oceane
6	Binary Object	Binary		Foix, Oceane

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Basic curation (CurationLevelB)

Size:

14 data points

Data

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1 Content	2 Binary (Type)	3 Binary (Size) [Bytes]	4 Binary (Charset)	5 Binary (Hash)	6 Binary
Earthquake locations output of the 3D P and S velocity models.	text/plain	275.6 kBytes	ISO-8859-1	ee57f3390e1d53fcb997f19188a6f3e1	Output-3D-Locations.txt
3D output velocity model for P waves.	text/plain	7.4 MBytes	ISO-8859-1	42c18025745c85c75b739e7cf6c3b973	Vp_model.txt
3D output velocity model for S waves.	text/plain	7.4 MBytes	ISO-8859-1	852773f1a0798e0f51ceb586f1efdd04	Vs_model.txt
NLLoc input model for P wave.	application/octet-stream	843.2 kBytes		ee22eed8915d0abef232204a9516ef64	layer.P.mod.buf
NLLoc input header for P wave.	text/plain	188 Bytes	ISO-8859-1	33d73f3b09eaecf77077934715e4889b	layer.P.mod.hdr
NLLoc input model for S wave.	application/octet-stream	843.2 kBytes		92d9e92fc885acba56390aea0feea7d5	layer.S.mod.buf
NLLoc input header for S wave.	text/plain	188 Bytes	ISO-8859-1	33d73f3b09eaecf77077934715e4889b	layer.S.mod.hdr