Re-Estimation of a Plausible Model of the Earthquake Fault as the Source of the 1771 Great Meiwa Tsunami Based on the Assessment of the Run-Up Height by Okinawa Prefecture, Japan  

作　　者：Takeshi Matsumoto Takeshi Matsumoto(Faculty of Science, University of the Ryukyus, Okinawa Prefecture, Japan)

机构地区：[1]Faculty of Science, University of the Ryukyus, Okinawa Prefecture, Japan

出　　处：《Open Journal of Geology》2020年第12期1250-1261,共12页地质学期刊（英文）

摘　　要：Plausible parameters of the earthquake fault which caused the 1771 Great Meiwa Tsunami were re-estimated by comparing the result of the tsunami run-up height by the numerical simulation by Okinawa Prefectural Government and those by 1) run-up height derived from previous field works, and 2) a historical record describing the run-up height in Miyako District. The re-estimation shows that the length of the fault off Miyako and Yaeyama districts is 300 km or more. However, the slip of the fault is 20 m off Yaeyama and 8 - 14 m off Miyako.Plausible parameters of the earthquake fault which caused the 1771 Great Meiwa Tsunami were re-estimated by comparing the result of the tsunami run-up height by the numerical simulation by Okinawa Prefectural Government and those by 1) run-up height derived from previous field works, and 2) a historical record describing the run-up height in Miyako District. The re-estimation shows that the length of the fault off Miyako and Yaeyama districts is 300 km or more. However, the slip of the fault is 20 m off Yaeyama and 8 - 14 m off Miyako.

关 键 词：The 1771 Great Meiwa Tsunami OKINAWA Earthquake Fault 

分 类 号：P73[天文地球—海洋科学]