That sounds familiar...Is that why we have the modified Richter? Perhaps we need to design something for every country? Wow...Well Mercalli was good but I tried to use it and found that one had to collect much local data to make it somewhat valid...I wonder if anything we have works... Red Puma is frequently off by area and secondly by M. My best involved factor is Stephen who is #55 PSN. He has those traces up to me right away...and he is much closer than anyone I know...He lives in Pilot Hill Ca which is in Placer County.