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


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.


Solid Earth Earth Quake Hypocentral Distance Water Level Variation Groundwater Reservoir 
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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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