TY - GEN
T1 - Far-field effects of large tsunamis produced by the Makran subduction zone
AU - Heidarzadeh, Mohammad
PY - 2009/12/31
Y1 - 2009/12/31
N2 - The 2004 Indian Ocean tsunami which exported death and destruction to far distant shores, once more emphasized the tsunami hazards associated with transoceanic tsunamis. Historical records of tsunamis in the Makran subduction zone (MSZ) reveal mat Makran tsunamis are capable of producing large waves in the far-field. The Makran tsunami of 1945 produced by an Mw8.1 earthquake was reported to cause farfield effects in the Indian Ocean and reached a height of about 30 cm in the Seychelles, at the distance of about 3500 km from the MSZ. Here, we assess historical observations of this event and perform numerical modeling of mis tsunami with emphasis on its far-field effects. Our numerical modeling successfully reproduces most feathers of the historical observations including its far-field effects. Southward propagation of Makran large tsunamis is investigated and their possible effects on Maldives and Seychelles islands are discussed. This study will help to better understand tsunami hazard associated with the MSZ, especially its far-field hazard.
AB - The 2004 Indian Ocean tsunami which exported death and destruction to far distant shores, once more emphasized the tsunami hazards associated with transoceanic tsunamis. Historical records of tsunamis in the Makran subduction zone (MSZ) reveal mat Makran tsunamis are capable of producing large waves in the far-field. The Makran tsunami of 1945 produced by an Mw8.1 earthquake was reported to cause farfield effects in the Indian Ocean and reached a height of about 30 cm in the Seychelles, at the distance of about 3500 km from the MSZ. Here, we assess historical observations of this event and perform numerical modeling of mis tsunami with emphasis on its far-field effects. Our numerical modeling successfully reproduces most feathers of the historical observations including its far-field effects. Southward propagation of Makran large tsunamis is investigated and their possible effects on Maldives and Seychelles islands are discussed. This study will help to better understand tsunami hazard associated with the MSZ, especially its far-field hazard.
KW - 1945 tsunami
KW - Far-field effects
KW - Historical observations
KW - Makran subduction zone
KW - Numerical modeling
UR - http://www.scopus.com/inward/record.url?scp=77952981424&partnerID=8YFLogxK
U2 - 10.1115/OMAE2009-79362
DO - 10.1115/OMAE2009-79362
M3 - Chapter in a published conference proceeding
AN - SCOPUS:77952981424
SN - 9780791843444
T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
SP - 225
EP - 231
BT - Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009
T2 - 28th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2009
Y2 - 31 May 2009 through 5 June 2009
ER -