A seismic refraction survey was conducted along a profile from Ajimu, Oita Prefecture, to Tano, Miyazaki Prefecture, on November 14, 1996. This profile is almost the same as the profile of the survey conducted in 1994. The total length of the Ajimu-Tano Profile was about 230km, and three shots and 236 temporary observation sites were arranged along the profile. Charge size of all shots was 500kg. Record signals of the observation sites in a distance range of less than 120km were of good quality. Travel times of first arrivals indicated the complex velocity structure of the shallow part of the crust. Reflected waves from the deeper part of the crust or the upper mantle were also clearly observed. Analysis of the high-quality data sets obtained in the 1996 and 1994 experiments might reveal a fine image of the crust in this area.
雑誌名
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
巻
74
号
1
ページ
141 - 160
発行年
1999-10-29
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
453
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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九州東部域における爆破地震動の観測 II : 安心院-田野測線
ji0741005.pdf
(1.73MB)
