HR: 1330h
AN: S32A-0829    [PDF]
TI: Fault Plane Detected Through Receiver Function Analysis
AU: * Lucente, F
EM: lucente@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, via di Vigna Murata 605, Roma, 00143 Italy
AU: Piana Agostinetti, N
EM: piana@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, via di Vigna Murata 605, Roma, 00143 Italy
AU: Moro, M
EM: moro@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, via di Vigna Murata 605, Roma, 00143 Italy
AU: Selvaggi, G
EM: selvaggi@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, via di Vigna Murata 605, Roma, 00143 Italy
AU: Di Bona, M
EM: dibona@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, via di Vigna Murata 605, Roma, 00143 Italy
AB: Unexpected features in teleseismic receiver function reveal the presence of a dipping interface with pronounced seismic velocity contrast in the Campania-Lucania region, Southern Apennines (Italy). Locus of this finding is the Melandro-Pergola basin, located between the maximum intensity areas of two of the most destructive earthquakes reported in the Italian seismic catalogue, the magnitude $\sim$ 7.0 Val d'Agri (1857) and Irpinia (1980) earthquakes. This area is not associated with known historical events and for this reason is currently object of investigation as potential seismic gap, where the probability of future ruptures is higher than in surrounding regions. Could the enlightened interface be the seismogenic source which fills the gap? Could the findings of this study offer a new tool to investigate and constraint the source parameters of historical earthquakes?
DE: 7203 Body wave propagation
DE: 7223 Seismic hazard assessment and prediction
DE: 7230 Seismicity and seismotectonics
DE: 8010 Fractures and faults
DE: 8015 Local crustal structure
SC: Seismology [S]
MN: 2003 Fall Meeting