Rise of activity, i.e. inverse cascading, at the approach of an extreme event

Function K


Increment of activity, **acceleration, expressed**

	by the difference between the number of

	earthquakes in the two successive intervals

	of time (t-s, t) and (t-2s, t-s):

		K(t \|m,s) = N(t \| m,s) - N(t-s \|m,s).


		Sixth Workshop on Non-Linear
Dynamics and Earthquake Prediction
	The Abdus Salam ICTP, Miramare

16/10/2001