$Magma fracture and hybrid earthquakes in the conduit of Augustine Volcano$

Magma fracture and hybrid earthquakes in the conduit of Augustine Volcano

We exploit subtle but systematic shifts in seismic waveforms to examine a 2 h cluster of repeating hybrid volcanic earthquakes preceding the first magmatic explosions at Augustine Volcano in January 2006. We extract differential P wave traveltimes of

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Bibliographische Detailangaben
Veröffentlicht in:	Geophysical research letters 2013-12, Vol.40 (23), p.6038-6042
Hauptverfasser:	Buurman, Helena, West, Michael E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Conduits earthquake migration Earthquakes Effusion Explosions Fracture mechanics hybrid earthquakes Lava Magma magma fracture P waves Seismic activity Seismic phenomena Seismic waves Visual observation Volcanic activity volcano seismology Volcanoes Waveforms
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Beschreibung
Zusammenfassung:	We exploit subtle but systematic shifts in seismic waveforms to examine a 2 h cluster of repeating hybrid volcanic earthquakes preceding the first magmatic explosions at Augustine Volcano in January 2006. We extract differential P wave traveltimes of
ISSN:	0094-8276 1944-8007
DOI:	10.1002/2013GL057864