Seismic evidence of an extended magmatic sill under Mt. Vesuvius.
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 (approximately 0.6 to 1.0 kilometer per second) and P-wave velocities (approximately 2.0 kilometer per second) as well as other evidence indicate an extended sill with magma interspersed in a solid matrix.
Auger
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E
Dipartimento di Scienze Fisiche, Università di Napoli Federico II, Complesso di M. S. Angelo, Via Cinthia, 80124 Napoli, Italy.
Gasparini
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P
Virieux
J
J
Zollo
A
A