Estimation of maximum mass velocities in the focal zones of strong earthquakes based on measured displacements of rock blocks: A case study of Kyrgyzstan
- Authors: Rodkin M.V.1, Korzhenkov A.M.2, Orumbaev S.Z.3
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Affiliations:
- Institute of Earthquake Prediction Theory and Mathematical Geophysics
- Schmidt Institute of Physics of the Earth
- Central Asian Institute for Applied Geophysics
- Issue: Vol 52, No 4 (2016)
- Pages: 315-322
- Section: Article
- URL: https://journals.rcsi.science/0747-9239/article/view/177355
- DOI: https://doi.org/10.3103/S074792391604006X
- ID: 177355
Cite item
Abstract
An important task in seismic hazard assessment is estimation of the intensity and frequency of extremely strong earthquake effects, in particular, peak ground velocities (PGV). Earlier, a method was proposed to evaluate PGV values based on the magnitude of displacements of rock blocks (Rodkin et al., 2012). In this study, this method is used to analyze field data on the source zones of the August 19, 1992, MS = 7.3 Susamyr earthquake and the January 3, 1911, Mw = 7.9 Kemin earthquake, and estimate maximum ground shaking at the upper construction site of the Upper Naryn series of hydropower plants, Kyrgyz Republic. It is shown that the resulting estimates are consistent with data obtained through other techniques. Therefore, the new approach can be recommended to estimate earthquake effects.
About the authors
M. V. Rodkin
Institute of Earthquake Prediction Theory and Mathematical Geophysics
Author for correspondence.
Email: rodkin@mitp.ru
Russian Federation, ul. Profsoyuznaya 84/32, Moscow, 117997
A. M. Korzhenkov
Schmidt Institute of Physics of the Earth
Email: rodkin@mitp.ru
Russian Federation, ul. Bolshaya Gruzinskaya 10-1, Moscow, 123242
S. Zh. Orumbaev
Central Asian Institute for Applied Geophysics
Email: rodkin@mitp.ru
Kyrgyzstan, ul. Timura Frunze 73/2, Bishkek, 720027