Unique strainmeter observations of Vulcanian explosions, Soufriere Hills Volcano, Montserrat, July 2003

B. Voight, D. Hidayat, S.I. Sacks, A. Linde, L. Chardot, A. Clarke, D. Elsworth, R. Foroozan, G. Mattioli, N. McWhorter, R S J Sparks, C. Widiwijayanti, S.R Young

Research output: Contribution to journalArticle (Academic Journal)peer-review

18 Citations (Scopus)

Abstract

Five Vulcanian explosions were triggered by collapse of the Soufriere Hills Volcano lava dome in 2003. We report strainmeter data for three explosions, characterized by four stages: a short transition between the onset of disturbance and a pronounced change in strain; a quasi-linear ramp accounting for the majority of strain change; a more gradual continued decline of strain to a minimum value; and a strain recovery phase lasting hours. Remarkable similar to 800 s barometric gravity waves propagated at similar to 30 m s(-1). Eruption volumes estimated from plume height and strain data are 0.32-0.42 x 10(6), 0.26-0.49 x 10(6), and 0.81-0.84 x 10(6) m(3), for Explosions 3-5 respectively, consistent with quasi-cylindrical conduit drawdown
Translated title of the contributionUnique strainmeter observations of Vulcanian explosions, Soufriere Hills Volcano, Montserrat, July 2003
Original languageEnglish
Number of pages5
JournalGeophysical Research Letters
Volume37
Issue number19
DOIs
Publication statusPublished - Jun 2010

Bibliographical note

Other identifier: L00E18

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