Bulletin of the Seismological Society of America; February 2006; v. 96; no. 1;
p. 313-320; DOI: 10.1785/0120050053
© Seismological Society of America
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Figure 2. Two examples of interevent-time probability distributions for California for
L = 100 km, Mmin = 3 and central
points: crosses 
(36.7°, –121.3°); circles
(33.9°, –118.3°) with different fraction of mainshocks (Reasenberg
declustering: 74% and 30%). In (a) the distributions are compared with the fit
of the gamma distribution that yields a mainshock fraction of 47% and 11%,
respectively. In (b) the distributions are compared with the distribution of
long ETAS simulations with a mainshock fraction of 47% and 11%.
