HR: 0830h
AN: T51D-0199    [PDF]
TI: Evidence for Late Pleistocene-Holocene Activity along a Potential Seismic Source in southern Apennines (Italy)
AU: Moro, M
EM: moro@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata, 605, Rome, 00143 Italy
AU: Amicucci, L
EM: amicucci@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata, 605, Rome, 00143 Italy
AU: Cinti, F R
EM: cinti@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata, 605, Rome, 00143 Italy
AU: Fawzi, D
EM: doumaz@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata, 605, Rome, 00143 Italy
AU: * Montone, P
EM: montone@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata, 605, Rome, 00143 Italy
AU: Pierdominici, S
EM: pierdominici@ingv.it
AF: Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata, 605, Rome, 00143 Italy
AU: Saroli, M
EM: michele.saroli@uniroma1.it
AF: CNR, Istituto di Geologia Ambientale e Geoingegneria, P.le A.Moro, 5, Rome, 00185 Italy
AB: The Lucanian Apennines in southern Italy has experienced major and destructive earthquakes (Intensity * VIII) in 1561, 1694, 1826, 1857, 1980. Except for the 1980 Irpinia event for which coseismic faulting has been observed, no fault-event relationship has been definitely established for the rest of the mentioned earthquakes.Immediately south to the 1980 event zone and north to the 1857 one, a noteworthy area, where no clear relationship between seismogenic structures and historical seismic activity, has been identified. Structural and geomorphological analysis based on spot images, DEM, aerial photos interpretation and field observations, helped to point out 20 km length normal fault running on the western edge of two basins named Melandro and Pergola. The fault is composed by two main NNW-trending, ENE- dipping segments, showing an en-echelon pattern. The fault affects recent soft sediments, producing scarps up to 10 m high. Evidence for Late Pleistocene-Holocene tectonic activity along the trace were also observed at several outcrops and quarries, such as tilted and deformed colluvial and alluvial deposits. Radiocarbon dating from deformed sediments revealed a faulting age of at least 12 ka old. The far- and near- field data analysis and interpretations lead to consider this fault as a potential large earthquake source in this area.
DE: 1744 Tectonophysics
DE: 7221 Paleoseismology
DE: 7230 Seismicity and seismotectonics
DE: 9335 Europe
SC: Tectonophysics [T]
MN: 2003 Fall Meeting