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Induced Seismicity in Sidi Salem Dam, NW Tunisia

  • Sinda GaiebEmail author
  • Najet Shimi
Chapter
Part of the Advances in Science, Technology & Innovation book series (ASTI)

Abstract

The Sidi Salem reservoir was built in Beja, a semi-arid region in Northwestern Tunisia, for such purposes as the protection of the lower valley against floods, irrigation, water supply, and power generation. It is the biggest reservoir in Tunisia. It is a 73-m high, 814 Mm3 water storage capacity compacted-earth dam. The seismic events in the studied area were monitored by a seismic network operated by the National Institute of Meteorology. The main aim of this study was to establish the correlation between water level in the reservoir and the induced seismicity. The first earthquake susceptible to be an induced event was found out in 1987 with magnitude of 5 after complete filling of the dam. Shortly afterwards, there was an increase in the number of seismic events, and many earthquakes were noted. It was suggested that this induced seismicity took place after the reservoir loading effect and also the postponed effect of the diffusion of pore pressure. The comparison between the seismic data and reservoir water level indicated that there was a correlation between the changes in the water level and the seismic activity.

Keywords

Sidi Salem reservoir Seismic activity Induced seismicity Correlation Water level 

References

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    do Nascimento, A.F., Lunn, R.J., Cowie, P.A.: Modeling the heterogeneous hydraulic properties of faults using constraints from reservoir-induced seismicity. J. Geophys. Res. 110 (2005).  https://doi.org/10.1029/2004jb003398
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    Talwani, P.: On the nature of reservoir-induced seismicity. Pure. Appl. Geophys. 150, 473–492 (1997)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Geology, Faculty of Sciences of TunisEl Manar UniversityTunisTunisia

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