Tsunami Earthquake Now 9.3?

Thanks to my colleage Andrew Alden, About.com's Editor and Guide for Geology, for pointing out that the December 26, 2004 tsunami-causing earthquake near Sumatra has been found by seismologists from Northwestern University to have been three times more powerful than previously thought. Thus, the quake's magnitude has been increased from 9.0 to 9.3. If their research holds up, the Indonesian earthquake would be the second largest earthquake ever recorded (following the 9.5 Chile quake of May 22, 1960).