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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/2440

Authors: Mele, G.*
Title: High-Frequency Wave Propagation from Mantle Earthquakes in the Tyrrhenian Sea: New Constraints for the Geometry of the south Tyrrhenian Subduction Zone
Title of journal: Geoph. Res. Lett.
Series/Report no.: 15/25(1998)
Publisher: AGU
Issue Date: 1998
Keywords: Tyrrhenian subduction zone
Abstract: Propagation of shear waves produced by 25 mantle earthquakes (80-600 km depth) in the subduction zone of the south Tyrrhenian Sea (southern Italy) has been investigated to infer the geometry and extent of the descending lithosphere. From all hypocentral depths high-frequency, high-amplitude shear waves are recorded at most of the stations in southern Italy and easternmost Sicily. This shear-wave energy is interpreted to travel as a guided wave within the descending slab. In contrast, shear waves are either not recorded at all or they are recorded as low-frequency, low-amplitude signals at stations located in the peninsular part of Italy north of the Calabrian arc, in western Sicily and in Sardinia. This systematic S-wave attenuation is interpreted in terms of an active and continuous slab correlated with and limited to the Calabrian arc.
Appears in Collections:05.02.02. Seismological data
Papers Published / Papers in press

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