A Methodology for a Comprehensive Probabilistic Tsunami Hazard Assessment: Multiple Sources and Short-Term Interactions
We propose a methodological approach for a comprehensive and total probabilistic tsunami hazard assessment (TotPTHA), in which many different possible source types concur to the definition of the total tsunami hazard at given target sites. In a multi-hazard and multi-risk perspective, the approach a...
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doaj-b4745e17dd114eaeba173cb813e7d6c72021-04-02T07:00:12ZengMDPI AGJournal of Marine Science and Engineering2077-13122015-01-0131235110.3390/jmse3010023jmse3010023A Methodology for a Comprehensive Probabilistic Tsunami Hazard Assessment: Multiple Sources and Short-Term InteractionsGrezio Anita0Roberto Tonini1Laura Sandri2Simona Pierdominici3Jacopo Selva4Istituto Nazionale di Geofisica e Vulcanologia, sezione di Bologna, Via Franceschini 31, 40128 Bologna, ItalyIstituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, 00143 Roma, ItalyIstituto Nazionale di Geofisica e Vulcanologia, sezione di Bologna, Via Franceschini 31, 40128 Bologna, ItalyHelmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam 14473, GermanyIstituto Nazionale di Geofisica e Vulcanologia, sezione di Bologna, Via Franceschini 31, 40128 Bologna, ItalyWe propose a methodological approach for a comprehensive and total probabilistic tsunami hazard assessment (TotPTHA), in which many different possible source types concur to the definition of the total tsunami hazard at given target sites. In a multi-hazard and multi-risk perspective, the approach allows us to consider all possible tsunamigenic sources (seismic events, slides, volcanic eruptions, asteroids, etc.). In this respect, we also formally introduce and discuss the treatment of interaction/cascade effects in the TotPTHA analysis and we demonstrate how the triggering events may induce significant temporary variations in short-term analysis of the tsunami hazard. In two target sites (the city of Naples and the island of Ischia in Italy) we prove the feasibility of the TotPTHA methodology in the multi—source case considering near submarine seismic sources and submarine mass failures in the study area. The TotPTHA indicated that the tsunami hazard increases significantly by considering both the potential submarine mass failures and the submarine seismic events. Finally, the importance of the source interactions is evaluated by applying a triggering seismic event that causes relevant changes in the short-term TotPTHA.http://www.mdpi.com/2077-1312/3/1/23submarine seismic sourcesubmarine mass failuretriggering eventsources interactionslong- and short-term hazardNaples-IschiaPTHA |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Grezio Anita Roberto Tonini Laura Sandri Simona Pierdominici Jacopo Selva |
spellingShingle |
Grezio Anita Roberto Tonini Laura Sandri Simona Pierdominici Jacopo Selva A Methodology for a Comprehensive Probabilistic Tsunami Hazard Assessment: Multiple Sources and Short-Term Interactions Journal of Marine Science and Engineering submarine seismic source submarine mass failure triggering event sources interactions long- and short-term hazard Naples-Ischia PTHA |
author_facet |
Grezio Anita Roberto Tonini Laura Sandri Simona Pierdominici Jacopo Selva |
author_sort |
Grezio Anita |
title |
A Methodology for a Comprehensive Probabilistic Tsunami Hazard Assessment: Multiple Sources and Short-Term Interactions |
title_short |
A Methodology for a Comprehensive Probabilistic Tsunami Hazard Assessment: Multiple Sources and Short-Term Interactions |
title_full |
A Methodology for a Comprehensive Probabilistic Tsunami Hazard Assessment: Multiple Sources and Short-Term Interactions |
title_fullStr |
A Methodology for a Comprehensive Probabilistic Tsunami Hazard Assessment: Multiple Sources and Short-Term Interactions |
title_full_unstemmed |
A Methodology for a Comprehensive Probabilistic Tsunami Hazard Assessment: Multiple Sources and Short-Term Interactions |
title_sort |
methodology for a comprehensive probabilistic tsunami hazard assessment: multiple sources and short-term interactions |
publisher |
MDPI AG |
series |
Journal of Marine Science and Engineering |
issn |
2077-1312 |
publishDate |
2015-01-01 |
description |
We propose a methodological approach for a comprehensive and total probabilistic tsunami hazard assessment (TotPTHA), in which many different possible source types concur to the definition of the total tsunami hazard at given target sites. In a multi-hazard and multi-risk perspective, the approach allows us to consider all possible tsunamigenic sources (seismic events, slides, volcanic eruptions, asteroids, etc.). In this respect, we also formally introduce and discuss the treatment of interaction/cascade effects in the TotPTHA analysis and we demonstrate how the triggering events may induce significant temporary variations in short-term analysis of the tsunami hazard. In two target sites (the city of Naples and the island of Ischia in Italy) we prove the feasibility of the TotPTHA methodology in the multi—source case considering near submarine seismic sources and submarine mass failures in the study area. The TotPTHA indicated that the tsunami hazard increases significantly by considering both the potential submarine mass failures and the submarine seismic events. Finally, the importance of the source interactions is evaluated by applying a triggering seismic event that causes relevant changes in the short-term TotPTHA. |
topic |
submarine seismic source submarine mass failure triggering event sources interactions long- and short-term hazard Naples-Ischia PTHA |
url |
http://www.mdpi.com/2077-1312/3/1/23 |
work_keys_str_mv |
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