Roger
NEIC records says from 1.1.1980 to
1.1.2010 the quakes are
6-6.9------3749 ie av per year 125
7-7.9------375 ie av per year 13
8+---------24 ie av per year say 1
It imply that all quakes (clusters and aftershocks) are included in total.How than we can compare both,one inclusive of clusters and aftershocks and another without it?.
What could be these average figures excluding both?
regards
Amit