An earthquake of the magnitude 6.9 occurred off the Izu Peninsula on May 9, 1974. Two foreshocks and many aftershocks were recorded at the Dodaira Micro-earthquake Observatory Network from the beginning of the main shock. The epicenters of the aftershocks were distributed mainly in the fault zone along the southwestern coast of the Peninsula and the Amagiregion, The daily frequency of aftershocks for a period of 30 days from the main shock is well represented by the formula, n(t)=k・t-p, with p=0.94.
内容記述
1974年伊豆半島沖地震調査概報
雑誌名
地震研究所研究速報
巻
14
ページ
37 - 43
発行年
1974-09
書誌レコードID
AN10165194
日本十進分類法
051.1
出版者
東京大学地震研究所
出版者別名
Earthquake Research Institute, University of Tokyo
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