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Studies on development of strong motion prediction and earthquake disaster prediction in Kyoto basin

京都盆地强震预报及地震灾害预报发展研究

基本信息

批准号：
11792026
负责人：
IRIKURA Kojiro
金额：
$ 5.76万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for University and Society Collaboration
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11792026/
关键词：
Kyoto basin Seismic array observation Strong motion records Underground structure model Numerical simulation Strong motionprediction Scenario earthquake Seismic wave propagation

项目摘要

In this research, our aim is to construct the method for accomplishing more reliable strong ground motion method for the scenario earthquakes in Kyoto area. Our research results are as follows,1. Seismic ground motion observation and strong motion database construction : For getting more detail underground structure model, dense seismic array observation was done in Kyoto basin. We also collected ground motion records at sites in Kyoto area and constructed ground motion data base.2. Construction of underground structure model : For constructing 1^<st> version of the basin model, we collected exploration survey results in Kyoto area. We also conducted microtremor array observation in SE Kyoto basin for estimating basin velocity structure.3. Characterized source model : Fault rupture model of the 2000 Tottoriken-Seibu and the 2001 Geiyo earthquakes from strong motion records and heterogeneous source scaling is discussed for characterizing source model for the future events.4. Relations between earthquake damage and ground motions : Earthquake damage of wooden houses during the Tottoriken Seibu and the Geiyo earthquakes was estimated.5. Strong motion prediction methodology : Based on the characterized source and the underground structure models, the methodology of the strong motion simulation for me scenario earthquake was discussed.

在这项研究中，我们的目的是构建一种实现京都地区假设地震的更可靠的强地面运动方法的方法。主要研究成果如下：1.地震地面运动观测与强震数据库建设：为了获得更详细的地下结构模型，在京都盆地进行了密集的地震台阵观测。并收集了京都地区场地的地震动记录，建立了地震动数据库。地下结构模型的建立：为建立1^&lt；st&gt；版本的盆地模型，我们收集了京都地区的勘探调查成果。我们还在京都盆地东南部进行了微震台阵观测，以估算盆地的速度结构。特征震源模式：讨论了2000年托托里肯-西武地震和2001年庆应地震的断层破裂模式和强震记录的非均质震源标度，为今后地震的震源模式刻画提供了依据。震害与地面运动的关系：估算了托托里肯西武地震和庆应地震中木屋的震害。强震预报方法：在震源特征和地下结构模型的基础上，探讨了对情景地震进行强震模拟的方法。