[1]HU Xian-ming,XIE Rong-hua,HAN Jin,et al.Seismic Wave Velocity Ratio under Water Body of Reservoir during Reservoir-induced Earthquakes[J].Journal of Seismological Research,2008,31(03):215-221.
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Seismic Wave Velocity Ratio under Water Body of Reservoir during Reservoir-induced Earthquakes
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
31
Number of periods:
2008 03
Page number:
215-221
Column:
Public date:
2008-03-23
- Title:
- Seismic Wave Velocity Ratio under Water Body of Reservoir during Reservoir-induced Earthquakes
- CLC:
- P315.7
- DOI:
- -
- Abstract:
- Taking the Daqiao reservoir-induced earthquake(MS4.6)and Zipingpu reservoir-induced earthquake swarm(the maximum ML2.5)for example, we studied the change of seismic wave velocity ratio before and after the earthquakes using the data of seismic ray that passed through the medium under water body. Based on the Yihaizi station's records(the seismic ray passed through the medium under the water body of the Daqiao reservoir), the velocity ratio showed high-value anomaly after the reservoir impounding and before the earthquake occurring, which reflects the influence of impounding on velocity ratio. Based on the Bajiao station's records(the seismic ray passed through the medium under the water body of the Zipingpu reservoir), the velocity ratio also showed high-value anomaly during a period of time after Aug. 28, 2006; and an ML2.5 earthquake swarm occurred about the Bajiao station in the following months. So, the wave velocity ratio computed by using the data of seismic ray that passed through the medium under the water body of reservoir, can reflect the change of the medium characteristics in and around an epicenter during a seismogenic process, and can be as a way to reservoir-induced earthquake prediction.
- References:
- -
- Similar References:
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Last Update:
2008-03-23