Looks like one of the signals have been taken care of. Which one? I don't know as it would fit in with both the M3.5 and M4.0 signals when factoring in the +/- .7.

MAG DATE LOCAL-TIME LAT LON DEPTH LOCATION
y/m/d h:m:s deg deg km
3.5 99/09/30 18:29:42 36.17N 117.90W 3.3 9 mi NNE of COSO JUNCTION

Dennis