On the spatio temporal distribution of global seismicity and rotation of the earth — A review

Shanker, D. and Kapur, Nipun and Singh, V. P. (2001) On the spatio temporal distribution of global seismicity and rotation of the earth — A review. Acta Geodaetica et Geophysica Hungarica, 36 (2). pp. 175-187. ISSN 1217-8977

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Abstract

This article reviews the development of the study of relationship between the earth's rotation and the spatio-temporal distribution of global seismicity by stationary model of seismicity rates and annual seismic energy released. Observed variations of seismic energy release in shallow, intermediate and deep focus earthquakes and their frequency distribution confirms this correlation. The peaks of these parameters are controlled by the earth rotation. There exists a phase relationship among earth's rotation rate minima and maxima with the maxima (peaks) of the above parameters as well as Thrust (T) and the strike slip (S) dominating periods of global seismicity. In order to compare our results with observations, the space-time dependence of the frequency of earthquakes and annual energy release has been established. The results are in very good agreement with previous studies and further enhance our knowledge for global seismicity distribution.

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