Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1998-10-01 |
タイトル |
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タイトル |
An intraplate earthquake that occured near Syowa Station, East Antarctica |
言語 |
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言語 |
eng |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
intraplate earthquake |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
broadband seismogram |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
moment tensor inversion |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
gravity lineament |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00003016 |
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ID登録タイプ |
JaLC |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
論文名よみ |
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その他のタイトル |
An intraplate earthquake that occured near Syowa Station, East Antarctica |
著者名(英) |
Negishi, Hiroaki
Nogi, Yoshifumi
Kaminuma, Katsutada
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著者所属(英) |
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en |
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Research Center for Earthquake Prediction, Disaster Prevention Research Institute, Kyoto University/National Institute of Polar Research/National Institute of Polar Research |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
An intraplate earthquake with m_b 4.6 occurred offshore of the Prince Olav Coast, East Antarctica on September 25, 1996. This earthquake was the biggest and the first one to be located within 500km of Syowa Station (69.0°S, 39.6°E) in the past four decades since seismic observations started under the IGY in 1957. The event was recorded by the broadband seismometers at Syowa Station and Mawson Station (67.6°S, 62.9°E), Antarctica. The moment tensor solution of this event was determined using the waveform inversion technique. The source mechanism indicates north-south compressional strike-slip faulting wih little dip-slip component. A straightforward grid search was applied to the data to evaluate the uniqueness of the solution. The minimum error was obtained for close strike, dip and rake angles that obtained in the inversion, so it can be said that the inversion result is suitable. The earthquake occurred on the gravitational lineament regarded as a fracture zone with NW-SE linear trend. The resultant mechanism has a faulting plane with a strike parallel to the fracture zone. Thus, this earthquake might be a fracturing along the pre-existed lineament inside the Antarctic plate. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA1130866X |
書誌情報 |
Polar geoscience
巻 11,
p. 32-41,
発行日 1998-10
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出版者 |
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出版者 |
National Institute of Polar Research |