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Science 16 November 2001:
Vol. 294. no. 5546, pp. 1510 - 1512
DOI: 10.1126/science.1064893
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Reports

Seismic Evidence of an Extended Magmatic Sill Under Mt. Vesuvius

Emmanuel Auger,1 Paolo Gasparini,1 Jean Virieux,2 Aldo Zollo1

Mt. Vesuvius is a small volcano associated with an elevated risk. Seismic data were used to better define its magmatic system. We found evidence of an extended (at least 400 square kilometers) low-velocity layer at about 8-kilometer depth. The inferred S-wave (~0.6 to 1.0 kilometer per second) and P-wave velocities (~2.0 kilometer per second) as well as other evidence indicate an extended sill with magma interspersed in a solid matrix.

1 Dipartimento di Scienze Fisiche, Università di Napoli Federico II, Complesso di M. S. Angelo, Via Cinthia, 80124 Napoli, Italy.
2 Géosciences Azur, 250 Avenue A. Einstein, 06560 Valbonne, France.

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Changes in the Coda Decay Rate and Shear-Wave Splitting Parameters Associated with Seismic Swarms at Mt. Vesuvius, Italy.
E. Del Pezzo, F. Bianco, S. Petrosino, and G. Saccorotti (2004)
Bulletin of the Seismological Society of America 94, 439-452
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Space and Time Behavior of Seismic Activity at Mt. Vesuvius Volcano, Southern Italy.
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