Oklahoma


M2.5 : 16.1 h
M3.0 : 3.35 d
M3.5 : 16.7 d
M4.0 : 83.4 d
M4.5 : 1.14 y
M5.0 : 5.69 y
M5.5 : 28.4 y
M6.0 : 141 y
M6.5 : 706 y
M7.0 : 3520 y
Based on 30,003 events. Largest M5.8
n = Events per year with magnitude >= M

M <= 7.0

log10(n) = 6.22 - 1.396*M