I know there is a programs with algorithms that do it for you, like zmap or openquake.
The problem is that i dont know if the resultant catalog it can be adequate.
If you can help, ill be thankful with you.
PD:Im working on analise the parameter b of the law of Gutenberg-Richter.
PD2:I attach some file that i found on the internet to get me clear for what i am asking,