THE 1989-1990 ERUPTIONS OF REDOUBT VOLCANO - AN INTRODUCTION

Citation
Tp. Miller et Ba. Chouet, THE 1989-1990 ERUPTIONS OF REDOUBT VOLCANO - AN INTRODUCTION, Journal of volcanology and geothermal research, 62(1-4), 1994, pp. 1-10
Citations number
33
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Geology
ISSN journal
0377-0273
Volume
62
Issue
1-4
Year of publication
1994
Pages
1 - 10
Database
ISI
SICI code
0377-0273(1994)62:1-4<1:T1EORV>2.0.ZU;2-P
Abstract
Redoubt Volcano, located on the west side of Cook Inlet in south-centr al Alaska, erupted explosively on over 20 separate occasions between D ecember 14, 1989 and April 21, 1990. Fourteen lava domes were emplaced in the summit area, thirteen of which were subsequently destroyed. Th e eruption caused economic losses estimated at over $160,000,000 makin g this the second most costly eruption in U.S. history. This economic impact provided the impetus for a integrated comprehensive account of an erupting volcano using both modern and classical research and moder n techniques which in turn led to advances in eruption monitoring and interpretation. Research on such topics as dome formation and collapse and the resulting pyroclastic flows, elutriated ash, lightning, tephr a, and flooding was blended with the rapid communication of associated hazards to a large user group. The seismology successes in predicting and monitoring eruption dynamics were due in part to (1) the recognit ion of long-period seismic events as indicators of the readiness of th e volcano to erupt, and (2) to the development of new tools that allow ed the seismicity to be assessed instantaneously. Integrated studies o f the petrology of erupted products and volatile content over time gav e clues as to the progress of the eruption towards completion.