[1]LIU Wenbang,WAN Yujie,LI Weijie.Research on Variation of Wave Velocity Ratio before and after Qinghai Menyuan MS6.4 Earthquake in 2016[J].Journal of Seismological Research,2016,39(增刊):49-54.
Copy
Research on Variation of Wave Velocity Ratio before and after 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:
49-54
Column:
Public date:
2016-11-20
- Title:
- Research on Variation of Wave Velocity Ratio before and after Qinghai Menyuan MS6.4 Earthquake in 2016
- CLC:
- P315.727
- DOI:
- -
- Abstract:
- Based on the observation report of seismic phases recorded by Qinghai Seismic Network from Jan.,2009 to Apr.,2016,we study the variation characteristics of wave velocity ratio before and after the 2016 Menyuan MS6.4 earthquake by using multi-station method and single station method. The results shows that the wave velocity ratio calculated by the multi station method shows a low value change which was not significant in one year before the earthquake. The wave velocity ratio calculated by the single Menyuan station shows a low value change from the beginning of 2014 to 2015,then returns to the average value,while the ratios of other stations dot's show abnormal change. The reason of the obtained result maybe have the relation with the multi-station average reduced the abnormity and the coverage of the source region by the seismic ray path.
- References:
- -
- Similar References:
Memo
-
Last Update:
2016-10-20