書誌事項
- タイトル別名
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- Dynamic Model Strong Ground Motion Close to the Fault
- 動力学モデルによる断層近傍の強震動--1984年長野県西部地震
- ドウリキガク モデル ニヨル ダンソウ キンボウ ノ キョウシンドウ 1984
- 1984年長野県西部地震
- The 1984 Nagano-Ken Seibu Earthquake
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抄録
High acceleration ground motions close to the fault of the 1984 Nagano-ken-Seibu earthquake are simulated using a finite difference calculation. The source is modeled by dynamic crack propagation. The distribution of the dynamic parameters, (e.g., stress drop and rupture time) on the fault are recovered with constraint of waveform inversion results inferred by YOSHIDA and KOKETSU (1992). Considering the limitation of numerical computation, we discuss 2Hz low-pass-filtered ground velocity and ground acceleration. Calculated maximum ground velocity and acceleration are 80cm/s and 600cm/s/s, respectively. The distribution of low-pass-filtered peak ground velocity and acceleration shows that high acceleration is generated near the high stress drop asperity at the depth of about 2km. This region corresponds to the area of high acceleration greater than 1g suggested by thrown-out stones [UMEDA et al. (1987), IIO et al. (1992)].
収録刊行物
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- 地震 第2輯
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地震 第2輯 49 (2), 179-191, 1996
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
- 1390282679283894400
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- NII論文ID
- 10006084047
- 10003877471
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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
- 4019596
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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