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北海道大学地球物理学研究報告 = Geophysical bulletin of Hokkaido University >
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Title: 知床硫黄山北西山腹爆裂火口での常時微動測定
Other Titles: Microtremor Observation at an Explosion Crater on northwestern mountainside of Shiretoko-Iozan Volcano, eastern Hokkaido
Authors: 高橋, 浩晃1 Browse this author →KAKEN DB
一柳, 昌義2 Browse this author
Authors(alt): TAKAHASHI, Hiroaki1
ICHIYANAGI, Masayoshi2
Issue Date: 19-Mar-2014
Publisher: 北海道大学大学院理学研究院
Journal Title: 北海道大学地球物理学研究報告
Journal Title(alt): Geophysical bulletin of Hokkaido University
Volume: 77
Start Page: 1
End Page: 4
Abstract: Microtremor observation was carried out in an active explosion crater of Shiretoko-Iozan volcano. Velocity seismograms indicated amplitude of microtremor was to be around 10-6m/s. Comparison with the 1981 observation showed no significant change of microtremor amplitude. This result suggested that activity status of this crater had been stable. Microtremor amplitude at the mountain base showed one fifth of that in the crater. This fact implied that microtremor is due to geothermal activity in the crater.
Type: bulletin (article)
Appears in Collections:北海道大学地球物理学研究報告 = Geophysical bulletin of Hokkaido University > 第77号

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