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.
Original language | English |
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Pages (from-to) | 2045-2058 |
Number of pages | 14 |
Journal | Pure and Applied Geophysics |
Volume | 165 |
Issue number | 11-12 |
DOIs | |
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