Hi Petra. I used the last 3 years of the total catalog, which starts in 1934. The strongest quake was an M>7.1 in the Mexico State of Sonora on 12/31/1934 at 32.0000N/114.7500W. What a way to usher out the old year.

By the way the 2003/03/12 quake in the Gulf of California is now being listed as a 6.4Mw. Take Care…Don in creepy town