The seismological observation at Syowa Station (SYO), Antarctica was carried out by JARE (Japanese Antarctic Research Expedition) using HES seismographs of three components. We examined how many earthquakes reported in the summary report of USCGS were detected as P or PKP phase at SYO during the period from March to December 1967. The earthquake detection capability in connection with the magnitude and the epicentral distance was investigated. The detection capability of SYO is 7% in winter and 2% in summer. These values are the same order as those of DRV (Dumont d'Urville) and MIR (Mirny), but very low as compared with that of SPA (South Pole Station). The detection capability for distance range around 30 degrees is clearly low and it can be considered that there is some relation between the detection capability and P-wave amplitude.|1957年国際地球観測年以来,日本南極観測隊により,昭和基地では,いろいろな分野の観測が行なわれている.地震観測も1959年にHES地震計を使って開始された.1962年昭和基地の閉鎖にともない,4年間の空白はあったが,1966年基地は再開され,地震観測も始まった.1967年には長周期地震計(Tp=15秒)3成分も設置され,HES地震計3成分の観測ともども現在に至っている.
雑誌名
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
巻
47
号
3
ページ
453 - 466
発行年
1969-06-30
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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19. The Seismological Observation and the Earthquake Detection Capability of Syowa Station, Antarctica
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