Analysis on Characteristics of Precursor Wave Recorded by Tiltmeter at Linfen Station in Shanxi before Hejin M4.8 Earthquake
详细信息
- 责任者：Li Yan (Linfen Central Seismological Station ; Earthquake Administration of Shanxi Province ; Linfen 041000 ; China) ; Gao Zhenqiang
- 刊名：Journal of Seismological Research
- 出版年：2013
- 卷期：36(2)
- 关键词：地震 ; earthquakes ; 山西 ; Shanxi Province
- 页码：p.160-164
- 图表：illus., 13 refs.
- 分类号：0500
- issnNo：ISSN1000-0666
- isbnNo：CN53-1062/P
摘要
Using the observation data recorded by SSO-2I quartz horizontal pendulum and VP w ild band vertical pendulum tiltmeter,we analyzed the observation curves before Hejin M4.8 earthquake in Shanxi on Jan. 24,2010 by the original shape curve method. The result showed that there were obvious precursor wave before Hejin M4.8 earthquake on the observation curves recorded by two observational means. The morphological characteristics of precursor wave were similar with the stick-slip of the rock mechanics,which may was the short impending anomaly information of the Hejin M4. 8 earthquake. We also gave the mechanism explanation of the slow stick slip.