Studies on Application of Microtremors for Evaluating Ground Motion Characteristics during an Earthquake

应用微震评估地震地震动特性的研究

• 批准号: 05558047
• 负责人: SEO Kazuoh
• 金额: $ 10.3万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05558047/
• 关键词: microtremors; ground motion characteristics; seismic microzoning; the 1993 Kushiro-oki earthquake; the 1995 Hyogoken-nanbu earthquake; earthquake damage distribution; prediction of seismic motion; long-period microtremors; ノースリッジ地震(1994); 三陸はるか沖地

The principal objectives of this study were, 1) to make clear the origin source and the fundamental characteristics of microtremors, 2) to confirm applying methodologies and the limit of application, 3) specification, manufacturing, and testing of instruments, 4) preparing an useful guideline for microtremor measurements, 5) preparing a rental system for microtremor measurements, to encourage the further research activities of microtremors. For these reasons, we installed a test field to make joint measurements of microtremors in Kushiro area after the 1993 Kushiro-oki earthquaka. While we were discussing about the results, many earthquake disasters took place from 1993 to 1995. The severest damage followed after the 1995 Hyogoken-nanbu earthquake. Therefore we had to make the similar joint measurements of microtremors just we tried in Kushiro district. Although we could not have enough time to accomplish the analyzes in detail, the measured data will provide a lot of information for making seismic microzoning and city planning in the damaged areas in the future.

本研究的主要目的是，1）明确微震的起源和基本特征，2）确认应用方法和应用限制，3）仪器的规格、制造和测试，4）准备微震测量的有用指南，5）准备微震测量租赁系统，以鼓励进一步的微震研究活动。基于这些原因，我们在1993年钏路冲地震后设置了一个试验场，对钏路地区的微震进行联合测量。当我们讨论结果时，1993年至1995年发生了许多地震灾害。其中最严重的是1995年兵库县南部地震。因此，我们必须对钏路地区进行类似的微震联合测量。虽然我们没有足够的时间来完成详细的分析，但实测数据将为今后受损地区的地震微区划和城市规划提供大量信息。

项目成果

Enomoto, T.and K.Watanabe (1996): "Distribution of predominant periods of ground shaking estimated by microtremor measurements in Kushiro city" 11th World Conf.on Earthq.Eng., Paper. No.734. (1996)

Enomoto, T. 和 K.Watanabe (1996)：“通过钏路市微震测量估计的地面震动主要周期的分布”，第 11 届世界地球大会，论文。

瀬尾和大,佐間野隆憲: "地震動予測への微動の活用について(2)" 日本建築学会大会学術講演梗概集. 87-88 (1993)

Kazuhiro Seo、Takanori Samano：“关于使用微震进行地震运动预测（2）”日本建筑学会会议记录 87-88（1993）。

Seo, K., M.Haile, K.Kurita, K.Yamazaki, and A.Nakamaru: "Study of site effects in Kobe area using microtremors" 11th World Conf.on Earthq.Eng., Paper. No.1656. (1996)

Seo, K.、M.Haile、K.Kurita、K.Yamazaki 和 A.Nakamaru：“利用微震研究神户地区的场地效应”第 11 届世界地球大会，论文。

Seo, K., M.Haile, M.Moriuchi, K.Mori, H.Sueoka, L.Mualchin, L.Sheng, and T.Enomoto: "Microtremor measurements in Los Angeles area-A preliminary study of seismic microzoning-. Technical report by a cooperative investigation team for microtremor measurement

Seo, K.、M.Haile、M.Moriuchi、K.Mori、H.Sueoka、L.Mualchin、L.Sheng 和 T.Enomoto：“洛杉矶地区的微震测量 - 地震微区划的初步研究 -。

上林宏敏他: "高密度アレー微動観測から推定された釧路地方気象台周辺の増幅特性" 第9回日本地震工学シンポジウム論文集. 第1分冊. 733-738 (1994)

Hirotoshi Uebayashi 等：“根据高密度阵列微震观测估计的钏路地方气象台周围的放大特征”第 9 届日本地震工程研讨会论文集第 1. 733-738 卷（1994 年）。