pure and applied geophysics

, Volume 145, Issue 1, pp 87–95

Sensitivity of a seismically active reservoir to low-amplitude fluctuations: Observations from Lake Jocassee, South Carolina

  • Kusala Rajendran
Article

DOI: 10.1007/BF00879485

Cite this article as:
Rajendran, K. PAGEOPH (1995) 145: 87. doi:10.1007/BF00879485

Abstract

Relation between water level changes and pattern of seismicity is an important consideration in studies of Reservoir Induced Seismicity (RIS). Sensitivity of the Regions around Lake Jocassee to small fluctuations in the lake level is presented in this paper. The seismic source regions in the area around the lake seem to be sensitive to changes in the lake level as small as 1 to 1.5 m. Although such changes may produce stress changes of the order of only 0.1 bar, their influence on the spatial pattern of earthquakes seems to be quite perceptible. Observations of this type may help understand the threshold values of pore pressure/effective stress changes that can activate fault zones under high fluid pressure.

Key words

Induced seismicity lake-level seismicity pattern pore pressure 

Copyright information

© Birkhäuser Verlag 1995

Authors and Affiliations

  • Kusala Rajendran
    • 1
  1. 1.Centre For Earth Science StudiesTrivandrumIndia

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