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A Review of Tsunami Hazards in the Makran Subduction Zone

Rashidi, Amin ; Dutykh, Denys ; Shomali, Zaher Hossein ; Keshavarz Farajkhah, Nasser ; Nouri, Mohammadsadegh

Univ Tehran, Sch Civil Engn, Tehran 1417613131, Iran 2020

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  • Título:
    A Review of Tsunami Hazards in the Makran Subduction Zone
  • Autor: Rashidi, Amin ; Dutykh, Denys ; Shomali, Zaher Hossein ; Keshavarz Farajkhah, Nasser ; Nouri, Mohammadsadegh
  • Assuntos: deterministic hazard assessment ; Geofysik ; Geophysics ; Makran subduction zone ; numerical modeling ; Oceanografi, hydrologi och vattenresurser ; Oceanography, Hydrology and Water Resources ; probabilistic hazard assessment ; tsunami hazard ; uncertainty quantification
  • Notas: 0000-0001-6254-7560
    http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-424764
    ISI:000580355100001
    doi:10.3390/geosciences10090372
    Geosciences, 2020, 10:9
  • Descrição: The uncertain tsunamigenic potential of the Makran Subduction Zone (MSZ) has made it an interesting natural laboratory for tsunami-related studies. This study aims to review the recent activities on tsunami hazard in the Makran subduction zone with a focus on deterministic and probabilistic tsunami hazard assessments. While almost all studies focused on tsunami hazard from the Makran subduction thrust, other local sources such as splay faults and landslides can be also real threats in the future. Far-field tsunami sources such as Sumatra-Andaman and Java subduction zones, commonly lumped as the Sunda subduction zone, do not seem to pose a serious risk to the Makran coastlines. The tsunamigenic potential of the western segment of the MSZ should not be underestimated considering the new evidence from geological studies and lessons from past tsunamis in the world. An overview of the results of tsunami hazard studies shows that the coastal area between Kereti to Ormara along the shoreline of Iran-Pakistan and the coastal segment between Muscat and Sur along Oman's shoreline are the most hazardous areas. Uncertainties in studying tsunami hazard for the Makran region are large. We recommend that future studies mainly focus on the role of thick sediments, a better understanding of the plates interface geometry, the source mechanism and history of extreme-wave deposits, the contribution of other local tsunamigenic sources and vulnerability assessment for all coastlines of the whole Makran region.
  • Editor: Univ Tehran, Sch Civil Engn, Tehran 1417613131, Iran
  • Data de criação/publicação: 2020
  • Idioma: Inglês
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