Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/5800
AuthorsZaccarelli, L.* 
Pandolfi, D.* 
Bianco, F.* 
Saccorotti, G.* 
Bean, C. J.* 
Del Pezzo, E.* 
TitleTemporal changes in seismic wave propagation towards the end of the 2002 Mt Etna eruption
Issue DateSep-2009
Series/Report no.3/178(2009)
DOI10.1111/j.1365-246X.2009.04219.x
URIhttp://hdl.handle.net/2122/5800
KeywordsInterferometry
Seismic anisotropy
Volcano seismology
Volcano monitoring
Subject Classification04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology 
AbstractStress can undergo rapid temporal changes in volcanic environments, and this is particularly true during eruptions. We use two independent methods, coda wave interferometry (CWI) and shear wave splitting (SWS) analysis to track stress related wave propagation effects during the waning phase of the 2002 NE fissure eruption at Mt Etna. CWI is used to estimate temporal changes in seismic wave velocity, while SWS is employed to monitor changes in elastic anisotropy. We analyse seismic doublets, detecting temporal changes both in wave velocities and anisotropy, consistent with observed eruptive activity. In particular, syn-eruptive wave propagation changes indicate a depressurization of the system, heralding the termination of the eruption, which occurs three days later.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
GJI_Zaccarelli et al_2009.pdf442.62 kBAdobe PDFView/Open
Show full item record

Page view(s)

72
Last Week
0
Last month
checked on Jun 22, 2017

Download(s)

21
checked on Jun 22, 2017

Google ScholarTM

Check

Altmetric