AZS in seismic regions
	To measure active zone size in the Earth we might use a box counting algorithm, in which the large spatial regions will be subdivided into many smaller regions that contain seismicity of a certain magnitude level. For example, AZS(t | m,s)= S d (ni ). In the Earth this measure is somewhat more complex due to the variable complexity of faults networks in different regions.
			Sixth Workshop on Non-Linear Dynamics and Earthquake Prediction The Abdus Salam ICTP, Miramare
	16/10/2001					21