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Titel |
Seismic source displacement by coda wave interferometry at Soufrière Hills Volcano, Montserrat, WI |
VerfasserIn |
S. Angelis |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1561-8633
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Digitales Dokument |
URL |
Erschienen |
In: Natural Hazards and Earth System Science ; 9, no. 4 ; Nr. 9, no. 4 (2009-08-03), S.1341-1347 |
Datensatznummer |
250006897
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Publikation (Nr.) |
copernicus.org/nhess-9-1341-2009.pdf |
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Zusammenfassung |
Since the start of the ongoing eruption, on 18 July 1995, the Soufrière
Hills Volcano (SHV) on Montserrat, WI, has been monitored with a network of
seismometers providing an unparalleled wealth of observations. A recurrent
and intriguing feature of the seismicity at SHV is the occurrence of regular
swarms of low-frequency earthquakes during episodes of volcanic unrest. A
notable example of this type of activity was recorded during the summer of
2008 when SHV erupted, on 29 July, following 15 days of seismic unrest. An
impressive swarm of low-frequency earthquakes with strikingly similar
waveforms, was recorded on 26 July through 27 July 2008. In this paper, the
cross-correlation properties of the repeating earthquakes are investigated,
and coda wave interferometry methods applied to infer seismic source
displacement throughout the swarm. |
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