MMIJ Annual Meeting 2016

Presentation information

一般講演

岩盤力学・開発機械

Mon. Mar 28, 2016 11:00 AM - 5:00 PM 第5会場 (東京大学)

司会:福田大祐(北海道大学), 坂口清敏(東北大学), 伊藤高敏(東北大学), 藤井義明(北海道大学)

3:30 PM - 3:45 PM

[1512] Dangerous Lunar Phases in which Giant Earthquakes Concentrate for Each Subduction Zone Revisited

Fujii Yoshiaki1, Tsuboi Yusuke1, Fukuda Daisuke1, Kodama Jun-ichi1 (1.Hokkaido University)

司会:伊藤高敏(東北大学)

Keywords:Dangerous lunar phases, Giant earthquakes, Subduction zone

The authors found dangerous lunar phases in which giant earthquakes, whose moment magnitude is more than or equal to 8, concentrate for each subduction zone and the significance of the dangerous lunar phases was statistically tested. There were however some ambiguities in selection of giant earthquakes and the rules to determine the phases were not strictly defined. In this paper, giant earthquakes were carefully selected again referring to their location on the map and dangerous lunar phases were strictly determined based on the proposed rules. The result for earthquakes whose moment magnitude is more than or equal to 7.5 for Peru and a method to predict the next giant earthquake are also shown.

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