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Pyroclastic flows and surges generated by the 25 June 1997 dome collapse, Sonfière Hills Volcano, Montserrat

Abstract:

On 25 June 1997, an unsteady, retrogressive, partial collapse of the lava dome at Soufrière Hills Volcano lasted 25 minutes and generated a major pulsatory block-and-ash flow, associated pyroclastic surges and a surge-derived pyroclastic flow that inundated an area of 4 km2 on the north and NE flanks of the volcano. Three main pulses are estimated to have involved 0.78, 2.36 and 2.36 x 106m3 of debris and the average velocities of the fronts of the related block-and-ash flow pulses were calcu...

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Journal:
Geological Society Memoir More from this journal
Volume:
21
Issue:
1
Pages:
191-209
Publication date:
2002-01-01
DOI:
EISSN:
2041-4722
ISSN:
0435-4052
Language:
English
Pubs id:
pubs:179937
UUID:
uuid:d04ff072-16e0-4977-83db-8fdfe063eb9f
Local pid:
pubs:179937
Source identifiers:
179937
Deposit date:
2012-12-19

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