Statistics – Computation
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29u..36s&link_type=abstract
Geophysical Research Letters, Volume 29, Issue 21, pp. 36-1, CiteID 2040, DOI 10.1029/2002GL015576
Statistics
Computation
9
Exploration Geophysics: Computational Methods, Seismic, Seismology: Body Wave Propagation, Seismology: Seismicity And Seismotectonics, Seismology: Volcano Seismology (8419)
Scientific paper
A high resolution P-wave image of Mt. Vesuvius edifice has been derived from simultaneous inversion of travel times and hypocentral parameters of local earthquakes, land based shots and small aperture array data. The results give details down to 300-500 m. The relocated local seismicity appears to extend down to 5 km below the central crater, distributed in a major cluster, centered at 3 km below the central crater and in a minor group, with diffuse hypocenters inside the volcanic edifice. The two clusters are separated by an anomalously high Vp region at around 1 km depth. A zone with high Vp/Vs in the upper layers is interpreted as produced by the presence of intense fluid circulation. The highest energy quakes (up to M = 3.6) are located in the deeper cluster, in a high P-wave velocity zone. Our results favor an interpretation in terms of absence of shallow magma reservoirs.
Bianco Francesca
Del Pezzo Edoardo
Scarpa Roberto
Tronca Fabrizio
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