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| Titel |
Integrating geologic fault data into tsunami hazard studies |
| VerfasserIn |
R. Basili, M. M. Tiberti, V. Kastelic, F. Romano, A. Piatanesi, J. Selva, S. Lorito |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 4 ; Nr. 13, no. 4 (2013-04-19), S.1025-1050 |
| Datensatznummer |
250018413
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| Publikation (Nr.) |
 copernicus.org/nhess-13-1025-2013.pdf |
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| Zusammenfassung |
| We present the realization of a fault-source data set designed to become the
starting point in regional-scale tsunami hazard studies. Our approach focuses
on the parametric fault characterization in terms of geometry, kinematics,
and assessment of activity rates, and includes a systematic classification in
six justification levels of epistemic uncertainty related with the existence
and behaviour of fault sources. We set up a case study in the central
Mediterranean Sea, an area at the intersection of the European, African, and
Aegean plates, characterized by a complex and debated tectonic structure and
where several tsunamis occurred in the past. Using tsunami scenarios of
maximum wave height due to crustal earthquakes (Mw=7) and
subduction earthquakes (Mw=7 and Mw=8), we illustrate
first-order consequences of critical choices in addressing the seismogenic
and tsunamigenic potentials of fault sources. Although tsunamis generated by
Mw=8 earthquakes predictably affect the entire basin, the impact
of tsunamis generated by Mw=7 earthquakes on either crustal or
subduction fault sources can still be strong at many locales. Such scenarios
show how the relative location/orientation of faults with respect to target
coastlines coupled with bathymetric features suggest avoiding the
preselection of fault sources without addressing their possible impact onto
hazard analysis results. |
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