最終更新日：2022/12/24
In 1954, Benioff analyzed the seismogramme of the Kamchatka earthquake of 1952 and found a phase with a period of 57 minutes . . .
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In 1954, Benioff analyzed the seismogramme of the Kamchatka earthquake of 1952 and found a phase with a period of 57 minutes . . .
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