pure and applied geophysics

, Volume 147, Issue 2, pp 409–418 | Cite as

Induced seismicity at wujiangdu reservoir, China: a case induced in the karst area

  • Hu Yuliang
  • Liu Zuyuan
  • Yang Oingyuan
  • Chen Xiancheng
  • Hu Ping
  • Ma Wentao
  • Lei Jun
Article

Abstract

To date 19 cases of reservoir-induced seismicity have been acknowledged in China and 15 of them are associated with karst. The Wujiangdu case is a typical one induced in the karst area. The dam with a height of 165 m is the highest built in a karst area in China. Seismic activity has been successively induced in five reservoir segments seven months after the impoundment in 1979. A temporary seismic network consisting of 8 stations was set up in one of the segments some 40 km upstream from the dam. The results indicate that epicenters were distributed along the immediate banks, composed of karstified carbonate, and focal depths were only several hundred meters. Most of the focal mechanisms were of thrust and normal faulting. It is suggested that karst may be an important factor in inducing seismicity. It can provide an hydraulic connection to change the saturation and pressure and also weak planes for dislocation to induce seismicity.

Key words

Reservoir-induced seismicity karst Wujiangdu Reservoir of China 

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References

  1. Gupta, H. K., andRastogi, B. K.,Dams and Earthquakes (Elsevier, 1976).Google Scholar
  2. Hu Yuliang, andChen Xiancheng (1979),Discussion on the Reservoir-induced Earthquakes in China and Some Problems Related to their Origin, Seismology and Geology1 (4), 45–57.Google Scholar
  3. Hu Yuliang, Chen Xiancheng, Zhang Zonglian, Ma Wento, Liu Zuyuang, andLei Iun (1976),Induced Seismicity at Hunanzhen Reservoir, Zhejiang Province, Seismology and Geology8 (4), 1–25.Google Scholar
  4. Hu Yuliang (1988),Induced Seismicity and Countermeasure, Earthquake Research in China4 (4), 34–39.Google Scholar
  5. Wang Miaoyueh, Yang Maoyuan, Hu Yuliang et al. (1976),Mechanism of the Reservoir Impounding Earthquakes at Hsinfengkiang (Xingfengjiang) and a Preliminary Endeavor to Discuss their Cause, Engineering Geology10 (2–4), 331–351.Google Scholar

Copyright information

© Birkhäuser Verlag 1996

Authors and Affiliations

  • Hu Yuliang
    • 1
  • Liu Zuyuan
    • 1
  • Yang Oingyuan
    • 1
  • Chen Xiancheng
    • 1
  • Hu Ping
    • 1
  • Ma Wentao
    • 1
  • Lei Jun
    • 1
  1. 1.Institute of GeologyState Seismological BureauBeijingChina

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