会議発表論文 Giant Earthquakes are Occurring at Lunar Phases Specific to Each Subduction Zone

Fujii, Yoshiaki  ,  Kodama, Jun-ichi  ,  Fukuda, Daisuke

2015p.513 , 2015-05-10 , International Society for Rock Mechanics
内容記述
Here, we statistically proved that giant earthquakes occur at lunar phases specific to each subduction zone. Enough attention during the lunar period, especially when seismicity is occurring, will significantly reduce damage from giant earthquakes. Two case studies in which giant earthquakes occurred after seismicity in dangerous lunar phases were discussed, and the mechanisms underlying why giant earthquakes occur around neap tide at some subduction zones were explained by prohibition of giant earthquake occurrences due to high strain rates at spring tides at N–S subduction zones. The prohibition was statistically proven for uniaxial creep tests on Inada granite with slight stress disturbances.
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http://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/59113/1/ISRM2015.513.pdf

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