Publication Date:
2017-04-04
Description:
We calculated the expected impact on the Italian coast of the Adriatic Sea of a large set of tsunamis resulting from potential earthquakes generated by major fault zones. Our approach merges updated knowledge on the regional tectonics and scenario-like calculations of expected tsunami impact.
We selected six elongated potential source zones. For each of them we determined a Maximum Credible Earthquake and the associated Typical Fault, described by its size, geometry and kinematics. We then let the Typical Fault float along strike of its parent source zone and simulated all tsunamis it could generate. Simulations are based on the solution of the nonlinear shallow water equations through a finite-difference technique. For each run we calculated the wave fields at specified simulation times and the maximum water height field (above mean sea level), then generated travel-time maps and maximum wave height profiles along the target coastline. Maxima were also classified in a three-level code of expected tsunami threat.
We found that the southern portion of Apulia facing Albania and the Gargano promontory are especially prone to the tsunami threat. We also found that some bathymetric features are crucial in determining the focalization-defocalization of tsunami energy. We suggest that our results be taken into account in the design of early-warning strategies.
Description:
INGV-DPC Project S2 “Assessing the seismogenic potential and the probability of strong earthquakes in Italy”
Description:
Published
Description:
2117-2142
Description:
3.2. Tettonica attiva
Description:
4.2. TTC - Scenari e mappe di pericolosità sismica
Description:
3.1. Fisica dei terremoti
Description:
JCR Journal
Description:
partially_open
Keywords:
tsunamis
;
Adriatic Sea
;
seismotectonics
;
active faulting
;
seismic hazard
;
tsunami hazard
;
03. Hydrosphere::03.01. General::03.01.01. Analytical and numerical modeling
;
04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
;
04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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