金沢大学自然科学研究科
Graduate School of Science and Technology, Kanazawa University
産業技術総合研究所地球科学情報研究部門
National Institute of Advanced Industrial Science and Technology, Institute of Geosciences
抄録
A temporal variation in P wave velocities has been revealed in the Kanto-Tokai regions with observations of signals generated by repeated explosions. The total variation is the response of the crustal rocks to three elemental processes of the stress changes in the crust, tidal variations, accumulation of tectonic stress, and stress changes associated with a large earthquake. The sensitivity of the fractional wave velocity change to stress is estimated to be 0.1～0.01(Mpa)-1. The results suggest that the stress variation in a field within which an large earthquake is prepared can be monitored by observing seismic wave velocities.
雑誌名
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
巻
78
号
3
ページ
219 - 226
発行年
2003
ISSN
00408972
書誌レコードID
AN00162258
フォーマット
application/pdf
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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地震波速度変化と地殻内応力の測定
IHO78301.pdf
(655.5KB)
