I still don't think they're very good. You really need a good velocity model for earthquake locations. If they keep refining it, they'll get a narrow NE line along the megathrust. That's opposed to Azle, which was NW line along the transfer fault. When everything is perfect, they'll find the culprit at the top of the line, and he'll say "Who, me? I didn't do nothing." Same as Azle they'll find a rock water injection well that has been operating for years. What they might not find is the substitution of frack waste. Too bad.