Hi Dave Sean Thomas had an email awhile back which included an equation for calculating signal amplitude for various magnitude quakes and distances. I believe 16 bit is not unreasonable . Example: at the sensitivity of my sensor magnitude distance count 3.0 250k 150 5.2 250k 32768 5.5 9000k 150 7.7 9000k 32768 winter microseism's na 300 These are approximate values I picked off a log-log graph I plotted. STM had a more extensive table. It is interesting to plot STM's equation and then plot p-p magnitudes that one obtains from ones recorded events. I plotted log distance on the x-axis and log count on the y-axis. Magnitude lines were then plotted in 0.5 intervals. Regards Barry __________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>