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Title: 焼岳火山付近の群発地震観測
Other Titles: OBSERVATION OF SEISMIC ACTIVITY NEAR MOUNT YAKE-DAKE VOLCANO IN CENTRAL HONSHU, JAPAN
Authors: 和田, 博夫  KAKEN_name
伊藤, 潔  KAKEN_name
梅田, 康弘  KAKEN_name
角野, 由夫  KAKEN_name
Author's alias: WADA, Hiroo
ITO, Kiyoshi
UMEDA, Yasuhiro
SUMINO, Yoshio
Issue Date: 1-Apr-1993
Publisher: 京都大学防災研究所
Journal title: 京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B
Volume: 36
Issue: B-1
Start page: 291
End page: 303
Abstract: Earthquake swarm activities have been occurring since January 1990 in the vicinity of Mount Yake-dake volcano in central Honshu, Japan.The volcano erupted frequently but it has been 30years since the last eruption in 1962.Temporary observation of microerarthquakes was conducted -near the volcano to survey the seismic activity.A station was set at about 1.5 km away from the summit crater in September, 1990 and five temporary stations were installed in the surrounding area of the volcano during the period from July to September, 1992. After that, three stations have been maintained to monitor the seismic activity.Although only a few events were located in the volcano during the period from July to September, 1992, the focal depths of the events were found to be very shallow as less than 3 km.In October and December, earthquake swarms occurred right beneath Yake-dake volcano.Earthquake swarms were also found in northeast, north and southeast of the volcano.Reviews of the studies on the volcano activity and earthquake swarms near the volcano are also given in this paper.
URL: http://www.dpri.kyoto-u.ac.jp/nenpo/nenpo.html
URI: http://hdl.handle.net/2433/72435
Appears in Collections:No.36 B-1

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