Publication Date:
2022-06-14
Description:
On 6 April 2009, at 01:32 GMT, an Mw 6.3 seismic event hit the
central Apennines, severely damaging the town of L’Aquila and
dozens of neighboring villages and resulting in approximately
300 casualties (Istituto Nazionale di Geofisica e Vulcanologia,
http://www.ingv.it; MedNet, http://mednet.rm.ingv.it/proce-
dure/events/QRCMT/090406_013322/qrcmt.html). This earth-
quake was the strongest in central Italy since the devastating
1915 Fucino event (Mw 7.0). The INGV national seismic net-
work located the hypocenter 5 km southwest of L’Aquila, 8–9
km deep. Based on this information and on the seismotectonic
framework of the region, earthquake geologists traveled to the
field to identify possible surface faulting (Emergeo Working
Group 2009a, 2009b). The most convincing evidence of pri-
mary surface rupture is along the Paganica fault, the geometry
of which is consistent with seismological, synthetic aperture
radar (SAR) and GPS data. Investigation of other known nor-
mal faults of the area, i.e., the Mt. Pettino, Mt. San Franco,
and Mt. Stabiata normal faults suggested that these structures
were not activated during the April 6 shock (Emergeo Working
Group 2009a, 2009b).
In this report, we first describe the seismotectonic frame-
work of the area, and then we present the field information that supports the occurrence of surficial displacement on the Paganica fault.
Description:
Published
Description:
940-950
Description:
3.2. Tettonica attiva
Description:
JCR Journal
Description:
open
Keywords:
Surface coseismic ruptures
;
Paganica Fault
;
earthquake
;
04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
;
04. Solid Earth::04.04. Geology::04.04.09. Structural geology
;
04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolution
;
04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics
;
04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring
;
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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