Preliminary estimation of the tsunami hazards associated with the Makran subduction zone at the northwestern Indian Ocean

Date

2009-02-01

Author

Heidarzadeh, Mohammad
Pirooz, Moharram D.
Zaker, Nasser H.
Yalçıner, Ahmet Cevdet

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We present a preliminary estimation of tsunami hazard associated with the Makran subduction zone (MSZ) at the northwestern Indian Ocean. Makran is one of the two main tsunamigenic zones in the Indian Ocean, which has produced some tsunamis in the past. Northwestern Indian Ocean remains one of the least studied regions in the world in terms of tsunami hazard assessment. Hence, a scenario-based method is employed to provide an estimation of tsunami hazard in this region for the first time. The numerical modeling of tsunami is verified using historical observations of the 1945 Makran tsunami. Then, a number of tsunamis each resulting from a 1945-type earthquake (M (w) 8.1) and spaced evenly along the MSZ are simulated. The results indicate that by moving a 1945-type earthquake along the MSZ, the southern coasts of Iran and Pakistan will experience the largest waves with heights of between 5 and 7 m, depending on the location of the source. The tsunami will reach a height of about 5 m and 2 m in northern coast of Oman and eastern coast of the United Arab Emirates, respectively.

Subject Keywords

Tsunami, Numerical modeling, Deterministic tsunami hazard assessment, Makran subduction zone (MSZ), Indian Ocean

URI

https://hdl.handle.net/11511/44130

Journal

NATURAL HAZARDS

DOI

https://doi.org/10.1007/s11069-008-9259-x

Collections

Department of Civil Engineering, Article

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Citation Formats

M. Heidarzadeh, M. D. Pirooz, N. H. Zaker, and A. C. Yalçıner, “Preliminary estimation of the tsunami hazards associated with the Makran subduction zone at the northwestern Indian Ocean,” NATURAL HAZARDS, pp. 229–243, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/44130.