I have to find the recurrency parameters used in the Gumbel type III (maximum likelihood-Weibull) methodology for a catalog of earthquakes (needed for a seismic hazard analysis).
Now, from what I understand the parameters are: w,m,u and LAMBDA. And I have to find P(m)=exp[-((w-m)/(w-u))^1/lamda].
w-maximum magnitude;
u-the extreme value associated to the unit of time (????)
lambda-is giving the asimptotic curve to the superior part of the anual probability;
P-the probility of NOT obtaining bigger magnitudes than m.
Who is u? How do I find LAMBDA?
Now, from what I understand the parameters are: w,m,u and LAMBDA. And I have to find P(m)=exp[-((w-m)/(w-u))^1/lamda].
w-maximum magnitude;
u-the extreme value associated to the unit of time (????)
lambda-is giving the asimptotic curve to the superior part of the anual probability;
P-the probility of NOT obtaining bigger magnitudes than m.
Who is u? How do I find LAMBDA?