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Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/5864
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| Authors: | Chiarabba, C.*
Amato, A.*
Anselmi, M.*
Baccheschi, P.*
Bianchi, I.*
Cattaneo, M.*
Cecere, G. P.*
Chiaraluce, L.*
Ciaccio, M. G.*
De Gori, P.*
De Luca, G.*
Di Bona, M.*
Di Stefano, R.*
Faenza, L.*
Govoni, A.*
Improta, L.*
Lucente, F. P.*
Marchetti, A.*
Margheriti, L.*
Mele, F.*
Michelini, A.*
Monachesi, G.*
Moretti, M.*
Pastori, M.*
Piana Agostinetti, N.*
Piccinini, D.*
Rosselli, P.*
Seccia, D.*
Valoroso, L.* |
| Title: | The 2009 L’Aquila (central Italy) MW6.3 earthquake: Main shock |
| Title of journal: | Geophys. Res. Lett. |
| Series/Report no.: | /36 (2009) |
| Issue Date: | 30-Sep-2009 |
| DOI: | 10.1029/2009GL039627 |
| Keywords: | seismic sequence |
| Abstract: | A MW
6.3 earthquake struck on April 6, 2009 the
Abruzzi region (central Italy) producing vast damage in the
L’Aquila town and surroundings. In this paper we present
the location and geometry of the fault system as obtained
by the analysis of main shock and aftershocks recorded
by permanent and temporary networks. The distribution of
aftershocks, 712 selected events with ML 2.3 and 20 with
ML 4.0, defines a complex, 40 km long, NW trending
extensional structure. The main shock fault segment extends
for 15–18 km and dips at 45 to theSW, between 10 and 2 km
depth. The extent of aftershocks coincides with the surface
trace of the Paganica fault, a poorly known normal fault
that, after the event, has been quoted to accommodate the
extension of the area.We observe a migration of seismicity to
the north on an echelon fault that can rupture in future large
earthquakes. |
| Appears in Collections: | Papers Published / Papers in press
04.06.01. Earthquake faults: properties and evolution
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Files in This Item:
| File |
Description |
Size | Format | Visibility |
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| 2009GL039627.pdf | Main article | 1.69 MB | Adobe PDF | View/Open
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