書誌事項
- タイトル別名
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- Coseismic Slip Distribution of the 2005 Miyagi-Oki (<i>M</i> 7.2) Earthquake Estimated by Inversion of Strong-motion and Teleseismic Waveforms
- 近地・遠地地震波形インヴァージョンによる2005年宮城県沖の地震(M7.2)の地震時すべり量分布--1978年宮城県沖地震(M7.4)との関係
- キンチ エンチ ジシン ハケイ インヴァージョン ニ ヨル 2005ネン ミヤギケンオキ ノ ジシン M7 2 ノ ジシンジ スベリリョウ ブンプ 1978ネン ミヤギケンオキ ジシン M7 4 トノ カンケイ
- Coseismic Slip Distribution of the 2005 Miyagi-Oki (M 7.2) Earthquake Estimated by Inversion of Strong-motion and Teleseismic Waveforms
- —Its Relation with the 1978 Miyagi-Oki Earthquake (<i>M</i> 7.4) —
- —1978年宮城県沖地震（<i>M</i> 7.4）との関係—
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抄録
On August 16, 2005, a large earthquake (M 7.2) occurred along the plate boundary of off Miyagi Prefecture (Miyagi-Oki), northeastern Japan. In this area, large earthquakes (∼M 7.5) have occurred repeatedly at intervals of about 37 years, and it has passed more than 27 years since this event occurred. To understand the relation between this earthquake and the previous 1978 event, we estimated the coseismic slip distribution of the 2005 Miyagi-Oki earthquake by the seismic waveform inversion method. We used the same structure model used in the analysis of the 1978 event. By comparing the coseismic slip distribution of the 2005 Miyagi-Oki earthquake of this study with those of previous studies, we investigated the reliability and our result seems to be plausible. Then we compared our result with the previous 1978 Miyagi-Oki earthquake and found that the rupture area of the 2005 event overlapped with the southeastern part of the 1978 earthquake’s rupture area. This result supports the idea that there exist plural asperities which cause the sequence of Miyagi-Oki earthquake, and the 2005 event ruptured part of such asperities, while the previous 1978 event ruptured all of the prural asperities at one time.
収録刊行物
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- 地震 第２輯
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地震 第２輯 60 (1), 43-53, 2007
公益社団法人 日本地震学会
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詳細情報 詳細情報について
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- CRID
- 1390282679280320384
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- NII論文ID
- 10019840137
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- NII書誌ID
- AN00305741
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- ISSN
- 18839029
- 2186599X
- 00371114
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- NDL書誌ID
- 8938835
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
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- 抄録ライセンスフラグ
- 使用不可