must be the Russian magnitude scale
Posted by John Vidale on October 02, 2003 at 11:51:49:

The mainshock was an M7 - 7.5.
The aftershocks went up to about M6.5.

John

Follow Ups:
     ● Re: must be the Russian magnitude scale - Don in Hollister  12:19:30 - 10/2/2003  (19552)  (0)