A Survey for Estimation of Earthquake Characteristics and Risk of Chugoku Districts

地震灾害危险性的估计应建立在由经验和实验数据给出的正确的地震活动性的基础上。在日本，地震灾害的历史记载在许多文献上已有一千多年的历史。日本气象厅每月公布的其他实验性地震记录，是研究日本及其邻近地区地震活动的重要基础资料。数据库系统在普通的个人计算机上组成，数据可以从另一个任意的站点使用。1995年兵库县南部地震中，大量的木结构房屋遭受了严重的破坏。通过对淡路岛三个地区倒塌或受损木结构房屋的全面调查，按七类结构特征对木结构房屋的破坏指数进行了评估。

The estimation of earthquake hazard risk should be based upon the correct earthquake activities given from both empirical and experimental data. In Japan, historical earthquake hazards were recorded on many documents for more than a thousand year. Other experimental earthquake records were published from the Japan Meteololgic Agency by monthly, and these records are important basic data for earthquake activities in or near Japan. Database system is composed on the normal personal computer and the data can be used from another arbitrary station.A great number of wooden houses suffered from severe damage by Hyogoken Nanbu Earthquake 1995. From the total investigation of collapsed or damaged wooden houses in three districts in Awaji island, damage indices of wooden houses are evaluated in the terms of seven categories of there structural characteristics.