Seismic exploration at Iwate volcano in northeastern Japan was conducted by a group of researchers from 11 national universities in Japan, National Institute of Polar Research, and Japan Meteorological Agency in October 2000. This exploration is the seventh joint experiment to reveal the seismic structures of volcanoes under the 6th National Project for Prediction of Volcanic Eruptions. We deployed 330 temporal seismic stations, each equipped with a short-period seismometer and a compact data-logger with a GPS clock, on and around the volcano. Nine artificial sources using dynamite with charge sizes of 200 or 250 kg were set within a distance of 20 km from the summit of the volcano and they were successfully fired. We carefully picked the first motion from the seismograms recorded at both the temporal seismic stations and permanent stations of Tohoku University, JMA and NIED around the volcano to obtain 2,676 travel times. This paper summarizes the exploration and presents a basic data set including shot information and arrival times of the first motion.
雑誌名
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
巻
77
号
1
ページ
1 - 25
発行年
2002-07-30
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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岩手山における人工地震探査 : 観測および初動の読み取り
ji0771001.pdf
(3.61MB)
