Numerical Study on Propagation Characteristics of Tsunami Induced by Tokai, Tonankai and Nankai Massive Earthquakes
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After the 2011 Tohoku Earthquake, it has been pointed out that Tokai, Tonankai and Nankai massive earthquakes with a magnitude of 9.0 could strike the Pacific coasts in western Japan. This study aims at investigatingnumerically propagation characteristics of tsunami generated by a 9.0 magnitude Tokai, Tonankai and Nankai massiveearthquakes on the Pacific coasts and three major bays in Japan, Tokyo Bay, Ise Bay and Osaka Bay. It was revealed fromthe numerical results that the tsunami heights on the Pacific coasts for M9.0 earthquake were about twice as much as thosefor M8.7 earthquake and the first tsunami arrival time was faster at some areas distant from the tsunami source. Moreover,high water level in the bays was recognized to continue for a long time because of the enclosed bays.
Abstract
After the 2011 Tohoku Earthquake, it has been pointed out that Tokai, Tonankai and Nankai massive earthquakes with a magnitude of 9.0 could strike the Pacific coasts in western Japan. This study aims at investigatingnumerically propagation characteristics of tsunami generated by a 9.0 magnitude Tokai, Tonankai and Nankai massiveearthquakes on the Pacific coasts and three major bays in Japan, Tokyo Bay, Ise Bay and Osaka Bay. It was revealed fromthe numerical results that the tsunami heights on the Pacific coasts for M9.0 earthquake were about twice as much as thosefor M8.7 earthquake and the first tsunami arrival time was faster at some areas distant from the tsunami source. Moreover,high water level in the bays was recognized to continue for a long time because of the enclosed bays.
참고문헌 (7)
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