Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3886
AuthorsPiana Agostinetti, N.* 
Chiarabba, C.* 
TitleSeismic Structure Beneath Mt. Vesuvius From Receiver Function Analysis and Local Earthquakes Tomography: Evidences for Location and Geometry of the Magma Chamber
Issue Date30-Jun-2008
Series/Report no.3/175 (2008)
DOI10.1111/j.1365-246X.2008.03868.x
URIhttp://hdl.handle.net/2122/3886
KeywordsReceiver Function
Vesuvius
Magma Chamber
Local Earthquake tomography
Subject Classification04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology 
AbstractThe recognition and localisation of magmatic fluids are pre-requisites for evaluating the volcano hazard of the highly urbanized area of Mt. Vesuvius. Here we show evidence and constraints for the volumetric estimation of magmatic fluids underneath this sleeping volcano. We use Receiver Functions for teleseismic data recorded at a temporary broad band station installed on the volcano to constrain the S-wave velocity structure in the crust. Receiver Functions are analyzed and inverted using the Neighbourhood Algorithm approach. The 1D S-velocity profile is jointly interpreted and discussed with a new Vp and Vp/Vs image obtained by applying double difference tomographic techniques to local earthquakes. Seismologic data define the geometry of an axial, cylindrical high Vp, high Vs body consisting of a shallow solidified materials, probably the remnants of the caldera, and ultramafic rocks paving the crustal magma chamber. Between these two anomalies, we find a small region where the shear wave velocity drops, revealing the presence of magma at relatively shallow depths. The volume of fluids (30 km3) is sufficient to contribute future explosive eruptions.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
piana_gji_manuscript_revised.texAccepted paper45.83 kBTeXView/Open
Show full item record

Page view(s)

74
Last Week
1
Last month
0
checked on Aug 19, 2017

Download(s)

204
checked on Aug 19, 2017

Google ScholarTM

Check

Altmetric