書誌事項
- タイトル別名
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- FOCAL MECHANISM SOLUTIONS OF EARTHQUAKES IN THE EASTERN PART OF SHIKOKU AND ITS VICINITY
- 四国東部及び周辺地域における地震の発震機構
- シコク トウブ オヨビ シュウヘン チイキ ニ オケル ジシン ノ ハツシン
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抄録
Focal mechanisms of 60 earthquakes are determined in the eastern part of Shikoku and its vicinity from P first motions. The events shallower than 23 km have maximum pressure axes of east-west direction, on the contrary events deeper than 23 km have these of north-south direction. The distribution of the earthquakes in the uppermost mantle dips from the Nankai trough to the Median Tectonic Line and maximum pressure axes show down-dip comprresion along the dip direction of distribution of them. Furthermore, maximum tension axes lie east-west direction in the distribution of the deeper earthquakes. A few earthquakes with normal faults are found in the upper mantle of central Shikoku and Kii Channel. This complex feature of focal mechanisms shows the detailed structure of the Philippine sea plate in this region.
収録刊行物
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- 京都大学防災研究所年報. B
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京都大学防災研究所年報. B 35 (B-1), 333-346, 1992-04-01
京都大学防災研究所
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詳細情報 詳細情報について
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- CRID
- 1050001202110193792
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- NII論文ID
- 120001178687
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- NII書誌ID
- AN00027784
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- ISSN
- 0386412X
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- HANDLE
- 2433/72366
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- NDL書誌ID
- 3805650
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- 本文言語コード
- ja
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- 資料種別
- departmental bulletin paper
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- データソース種別
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- IRDB
- NDL
- CiNii Articles