Evaluating tsunami hazard in the Northwestern Indian Ocean

Mohammad Heidarzadeh; Moharram D. Pirooz; Nasser H. Zaker; Costas E. Synolakis

doi:10.1007/s00024-008-0415-8

Evaluating tsunami hazard in the Northwestern Indian Ocean

Mohammad Heidarzadeh, Moharram D. Pirooz, Nasser H. Zaker, Costas E. Synolakis

Department of Architecture & Civil Engineering

Research output: Contribution to journal › Article › peer-review

37 Citations (SciVal)

Abstract

We evaluate here the tsunami hazard in the northwestern Indian Ocean. The maximum regional earthquake calculated from seismic hazard analysis, was used as the characteristic earthquake for our tsunami hazard assessment. This earthquake, with a moment magnitude of M_w 8.3 and a return period of about 1000 years, was moved along the Makran subduction zone (MSZ) and its possible tsunami wave height along various coasts was calculated via numerical simulation. Both seismic hazard analysis and numerical modeling of the tsunami were validated using historical observations of the Makran earthquake and tsunami of the 1945. Results showed that the possible tsunami may reach a maximum height of 9.6 m in the region. The distribution of tsunami wave height along various coasts is presented. We recommend the development of a tsunami warning system in the region, and emphasize the value of education as a measure to mitigate the death toll of a possible tsunami in this region.

Original language	English
Pages (from-to)	2045-2058
Number of pages	14
Journal	Pure and Applied Geophysics
Volume	165
Issue number	11-12
DOIs	https://doi.org/10.1007/s00024-008-0415-8
Publication status	Published - 31 Dec 2008

Bibliographical note

Funding Information:
We would like to thank Sergei D. Odintsov and Liu Zhao for helpful comment on the manuscript. P. W. would especially like to thank Jeremie Vinet for clarifying discussion on the radion effective potential. P. W. would also like to thank James M. Cline and David Tong for helpful correspondence on this paper. X. H. M. has benefitted a lot by helpful discussions with D. Lyth, L. Ryder, X. P. Wu, and X. M. Zhang. This work is supported partly by ICSC-World Laboratory Scholarship and Doctoral Foundation of National Education Ministry.

Funding

We would like to thank Sergei D. Odintsov and Liu Zhao for helpful comment on the manuscript. P. W. would especially like to thank Jeremie Vinet for clarifying discussion on the radion effective potential. P. W. would also like to thank James M. Cline and David Tong for helpful correspondence on this paper. X. H. M. has benefitted a lot by helpful discussions with D. Lyth, L. Ryder, X. P. Wu, and X. M. Zhang. This work is supported partly by ICSC-World Laboratory Scholarship and Doctoral Foundation of National Education Ministry.

Keywords

Deterministic tsunami hazard assessment (DTHA)
Makran subduction zone (MSZ)
Maximum regional earthquake
Near-field effects
Northwestern Indian Ocean
Numerical modeling

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology

Access to Document

10.1007/s00024-008-0415-8

Cite this

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abstract = "We evaluate here the tsunami hazard in the northwestern Indian Ocean. The maximum regional earthquake calculated from seismic hazard analysis, was used as the characteristic earthquake for our tsunami hazard assessment. This earthquake, with a moment magnitude of Mw 8.3 and a return period of about 1000 years, was moved along the Makran subduction zone (MSZ) and its possible tsunami wave height along various coasts was calculated via numerical simulation. Both seismic hazard analysis and numerical modeling of the tsunami were validated using historical observations of the Makran earthquake and tsunami of the 1945. Results showed that the possible tsunami may reach a maximum height of 9.6 m in the region. The distribution of tsunami wave height along various coasts is presented. We recommend the development of a tsunami warning system in the region, and emphasize the value of education as a measure to mitigate the death toll of a possible tsunami in this region.",

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Evaluating tsunami hazard in the Northwestern Indian Ocean

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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