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Far-Field Tsunami Hazard Assessment Along the Pacific Coast of Mexico by Historical Records and Numerical Simulation
Ist Teil von
Pure and applied geophysics, 2018-04, Vol.175 (4), p.1305-1323
Ort / Verlag
Cham: Springer International Publishing
Erscheinungsjahr
2018
Link zum Volltext
Quelle
SpringerNature Journals
Beschreibungen/Notizen
Historical records of the Chile (22 May 1960), Alaska (27 March 1964), and Tohoku (11 March 2011) tsunamis recorded along the Pacific Coast of Mexico are used to investigate the goodness of far-field tsunami modeling using a focal mechanism consisting in a uniform slip distribution on large thrust faults around the Pacific Ocean. The Tohoku 2011 tsunami records recorded by Deep ocean Assessment and Reporting of Tsunami (DART) stations, and at coastal tide stations, were used to validate transoceanic tsunami models applicable to the harbors of Ensenada, Manzanillo, and Acapulco on the coast of Mexico. The amplitude resulting from synthetic tsunamis originated by
M
w
~ 9.3 earthquakes around the Pacific varies from ~ 1 to ~ 2.5 m, depending on the tsunami origin region and on the directivity due to fault orientation and waveform modification by prominent features of sea bottom relief.