= b·Mwi
CMT
+ c , i = 1,…5,
with
b = 1 and the parameter c estimated by least squares to be -4.88. Having determined c, the
magnitudes of all earthquakes in the data set are recalculated according to:
Mw(v)i := Ci + 4.88
With a determined to be -1.63 in the first step, the resulting log-linear attenuation relationship
becomes:
88.4)(log63.1)(log 1010 −+⋅−= MrPGV , (A)
Equation
/media/vedurstofan/utgafa/skyrslur/2009/VI_2009_012.pdf