Seismicity 03
Seismicity 03 : A term (used already by Willies, 1923) to describe quantitatively the space, time and magnitude distribution of earthquake occurrences. Seismicity within a specific source zone or region is usually quantified in terms of a Gutenberg Richter relationship. See Utsu (2002b). seismic lid The mantle part of the seismic lithosphere overlying the asthenosphere. See Lay (2002)