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Izvestiya, Physics of the Solid Earth

, Volume 46, Issue 1, pp 47–56 | Cite as

The possibility of estimating the coseismic deformation from water level observations in wells

  • G. N. Kopylova
  • G. M. Steblov
  • S. V. Boldina
  • I. A. Sdel’nikova
Article

Abstract

A method for point estimation of coseismic volume deformation from amplitudes of earthquake-induced jumps in the water level and from the tidal sensitivity of the water level is presented. Application of this method is illustrated by six Kamchatka earthquakes of 1997–2004 with M w = 6.2–7.8 that occurred 128–316 km from the YuZ-5 well. Estimates of coseismic deformation provided by the level gage observations and by the model agree in amplitude and sign. The model reproduces an extended dislocation source in a homogeneous elastic isotropic half-space. Source rupture parameters correspond to focal mechanisms from the CMT international catalog. Consistence in experimental and theoretical estimates of the volume coseismic deformation indicates the high strain-resistance properties of YuZ-5 borehole and the possibility of quantitative estimation of seismotectonic deformation from high-precision water level measurements with time resolution not lower than 10 minutes.

Keywords

Solid Earth Earth Quake Hypocentral Distance Water Level Variation Groundwater Reservoir 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • G. N. Kopylova
    • 1
  • G. M. Steblov
    • 2
    • 3
  • S. V. Boldina
    • 1
  • I. A. Sdel’nikova
    • 3
  1. 1.Kamchatka Branch of the Geophysical ServiceRussian Academy of SciencesPetropavlovsk-KamchatskiiRussia
  2. 2.Schmidt Institute of Physics of the EarthRussian Academy of SciencesMoscowRussia
  3. 3.Geophysical ServiceRussian Academy of SciencesObninskRussia

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