Eruption of Soufrière Hills (1995–2009) from an offshore perspective: Insights from repeated swath bathymetry surveys

Abstract : This contribution provides an analysis of the 1995–2009 eruptive period of Soufrière Hills volcano (Montserrat) from a unique offshore perspective. The methodology is based on five repeated swath bathymetric surveys. The difference between the 2009 and 1999 bathymetry suggests that at least 395 Mm3 of material has entered the sea. This proximal deposit reaches 95 m thick and extends ∼7km from shore. However, the difference map does not include either the finer distal part of the submarine deposit or the submarine part of the delta close to the shoreline. We took both contributions into account by using additional information such as that from marine sediment cores. By March 2009, at least 65% of the material erupted throughout the eruption has been deposited into the sea. This work provides an excellent basis for assessing the future activity of the Soufrière Hills volcano (including potential collapse), and other volcanoes on small islands.
Type de document :
Article dans une revue
Geophysical Research Letters, American Geophysical Union, 2010, 37 (19), pp.L11307. 〈10.1029/2010GL043580〉
Liste complète des métadonnées

Littérature citée [24 références]  Voir  Masquer  Télécharger

https://hal-insu.archives-ouvertes.fr/insu-01586256
Contributeur : Eva Fareau <>
Soumis le : mardi 12 septembre 2017 - 16:23:28
Dernière modification le : jeudi 11 janvier 2018 - 06:25:48
Document(s) archivé(s) le : mercredi 13 décembre 2017 - 13:50:20

Fichier

Friant_et_al-2010-Geophysical_...
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

INSU | IPGP | USPC

Citation

A Le Friant, C Deplus, G Boudon, N Feuillet, J Trofimovs, et al.. Eruption of Soufrière Hills (1995–2009) from an offshore perspective: Insights from repeated swath bathymetry surveys. Geophysical Research Letters, American Geophysical Union, 2010, 37 (19), pp.L11307. 〈10.1029/2010GL043580〉. 〈insu-01586256〉

Partager

Métriques

Consultations de la notice

20

Téléchargements de fichiers

12