Broadband Strong Motion Generation Process from Source Fault of Large Earthquake with Extreme Ground Motions

特大地震震源断层宽带强震动生成过程

• 批准号: 19810008
• 负责人: ASANO Kimiyuki
• 金额: $ 1.99万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (Start-up)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2008
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19810008/
• 关键词: 地震; 極大地震動; 震源破壊過程; アスペリティ; 応力降下量; 2004年新潟県中越地震; 2007年能登半島地震; 2008年岩手・宮城内陸地震; 自然災害; 震源モデル; 強震動生成過程; 2003年宮城県沖地震

大地震の際にしばしば観測される極大地震動(極めて大きな地震動)の成因を震源の破壊過程との関係から解明するため、強震波形記録等を用いたインバージョン解析により、時空間的な震源破壊過程を詳細に調べた。近年発生し、極大地震動をもたらした被害地震の震源断層面のすべり分布が精度よく推定されたとともに、内陸地殻内地震の広帯域強震動生成を支配するアスペリティの応力降下量の深さ依存性を見出し、強震動予測に活かすための経験式を提案した。

The cause of large earthquake activity (very large earthquake activity) is greatly affected by the process of earthquake source breakage, the explanation of earthquake events, the analysis of strong earthquake waveform records, and the analysis of earthquake waves in time and space. In recent years, the accuracy of earthquake distribution on the source fault plane of the killed earthquake has been greatly affected by the occurrence of large earthquakes and extremely large earthquakes in recent years. In recent years, the accuracy of earthquake distribution in the source fault plane of the killed earthquake has been determined by the accuracy of earthquake distribution in the source fault plane of the killed earthquake, and the earthquake generation in the internal earthquake has been determined.

项目成果

Kinematic Source Rupture Process of the 2008 Iwate-Miyagi Nairiku Earthquake, a Mw6. 9 thrust earthquake in northeast Japan, using Strong Motion Data

2008 年岩手宫城内陆地震 Mw6 的运动学震源破裂过程。

• 发表时间: 2008
• 作者: Asano;K. and T. Iwata
• 通讯作者: K. and T. Iwata

Source modeling of recent large inland crustal earthquakes in Japan and source characterization for strong motion prediction

日本近期内陆地壳大地震震源模拟及强震预测震源特征

• 发表时间: 2008
• 期刊: Proceedings of the 14th World Conference on Earthquake Engineering 03-01-0025
• 作者: Asano;K.;and T. Iwata
• 通讯作者: and T. Iwata

Source Rupture Process of the 2004 Chuetsu, Mid-Niigata Prefecture, Japan, Earthquake Inferred from Waveform Inversion with Dense Strong-Motion Data

• DOI: 10.1785/0120080257
• 发表时间: 2009-02
• 期刊: Bulletin of the Seismological Society of America
• 影响因子: 3
• 作者: K. Asano;T. Iwata

震源過程からみた特徴、2007年能登半島地震の解明を目指して

旨在从震中过程的角度阐明2007年能登半岛地震的特征

• 发表时间: 2007
• 期刊: 第35回地盤震動シンポジウム論文集
• 作者: 岩田知孝;浅野公之;栗山雅之;岩城麻子;岩田知孝・浅野公之
• 通讯作者: 岩田知孝・浅野公之

Source Rupture Process of the 2008 Iwate-Miyagi Nairiku Earthquake by Strong Motion Data

利用强运动数据研究 2008 年岩手宫城内陆地震震源破裂过程

• 发表时间: 2008
• 作者: Asano;K.;and T. Iwata
• 通讯作者: and T. Iwata