Abstract
It has been suggsted that Gutenberg-Richter's and Omori's relations applied to an identical aftershock sequence are not independent but to be derived from a common generating function. The formulaN(t)=A exp(-αt)/(c+t)pis proposed to express aftershock activity in place of the popular modified Omori's formula. Suggestion is made that careful control of observation conditions is necessitated so as to obtain uniformities in the independently determined p values. It is needed to avoid contamination from the effect of exp(-αt) which is affected by the observation conditions.
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More From: Zisin (Journal of the Seismological Society of Japan. 2nd ser.)
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