[1]ZHANG Xiaoqing,YUAN Fuquan,YU Na.A Preliminary Study on the Precursor Anomaly Characteristics of Microtremor Strain of Qinghai Menyuan MS6.4 Earthquake in 2016[J].Journal of Seismological Research,2016,39(增刊):35-42.
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A Preliminary Study on the Precursor Anomaly Characteristics of Microtremor Strain of Qinghai Menyuan MS6.4 Earthquake in 2016
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
39
Number of periods:
2016 Supplementary
Page number:
35-42
Column:
Public date:
2016-11-20
- Title:
- A Preliminary Study on the Precursor Anomaly Characteristics of Microtremor Strain of Qinghai Menyuan MS6.4 Earthquake in 2016
- Keywords:
- Menyuan MS6.4 earthquake; microtremor; crustal strain field
- CLC:
- P315.727
- DOI:
- -
- Abstract:
- On the basis of the microtremor observation data in Qinghai Regional Digital Network,we studied and analyzed the regional stress field in Qinghai and its adjacent area,and summarized spatial and temporal evolution characteristics of strain field before Menyuan MS6.4 earthquake on Jan.21,2016. The results indicate that:the spatial distribution of regional strain field showed the strain gradient zone of tension and compression near the epicenter before the earthquake,and the strength of strains were roughly equivalent in tension and compression areas. The strain intensity in the time process showed that as the time of earthquake was approaching,the regional strain intensity increased near the epicenter in about 6 days before the earthquake,and was about 4 times higher than the background value.
- References:
- -
- Similar References:
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Last Update:
2016-10-20