The dependence of earthquake frequency magnitude relationship and strain energy release upon the focal depth in Hindu Kush region

J. C. DRAKOPOULOS, H. N. SRIVASTAVA

Abstract


The dependence of earthquake frequency magnitude
relationship and the strain energy release upon the focal depth in Hindu
Kush region lias been studied based on U.S.C.G.S. data during the years
1903-1971 (March) and the results have been compared with those of the
other investigators for European and Japanese region. It is seen that there
is no positive evidence for the decrease of b in Gutenberg-Ricliter's frequency
magnitude relationship with the focal depth. The temporal variation of
the elastic strain rebound also for these data does not show the same characteristic
pattern as reported by Benioff for the deep focus earthquakes.
Emphasis is given also to some facts relating to the seismotectonic regime
of Hindu Kusli area.

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References


DOI: https://doi.org/10.4401/ag-5124
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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X