2019年山形県沖の地震における強震観測点周辺の状況と発生した地震動との対応性 / Damage Situation Around the Seismic Stations in the 2019 off Yamagata Prefecture Earthquake and Correspondence of Damage to Buildings with Strong Ground Motions
- Resource Type
- Journal Article
- Authors
- Ayaka MIKI; Koki NOZAKI; Masashi SHIOMITSU; Shunsuke NAKAZAWA; Yuki SAKAI; 三木 彩加; 中澤 駿佑; 境 有紀; 汐満 将史; 野崎 光輝
- Source
- 日本地震工学会論文集 / Journal of Japan Association for Earthquake Engineering. 2020, 20(6):6-65
- Subject
- 2019年山形県沖の地震
Earthquake damage investigation
JMA seismic intensity scale
Seismic station
Strong ground motion
The 2019 off Yamagata Prefecture Earthquake
地震動
地震被害調査
強震観測点
震度
- Language
- Japanese
- ISSN
- 1884-6246
We carried out damage investigation around the seismic stations where high JMA seismic intensity scales were recorded in the 2019 off Yamagata Prefecture Earthquake. We found some minor damage such as damage to the outer wall and the roof tile, but heavily damaged buildings were not found around all the seismic stations. We investigated the correspondence of strong ground motions with damage to buildings. Short period below 1.0 s was dominated in most the strong ground motions and the 1-1.5 s response which has close relationship with heavy damage to buildings was small, therefore, heavily damaged buildings were not found in spite of high JMA seismic intensity scale. The buildings damaged to the roof tiles were found around many the seismic stations because the damage to the roof tile was correlated with the short period below 1.0 s.