[LowOiL]

I too heard the largest earthquake in American was along the Madrid fault. Rivers ran backwards for two days.

[LowOiL]

I have been wondering about after shocks? Surely we are due one about now...

[Drago]

I too heard the largest earthquake in American was along the Madrid fault. Rivers ran backwards for two days.

USGS:
The Largest Earthquakes in the United States
Location Date Time UTC Magnitude
1. Prince William Sound, Alaska 1964 03 28 03:36:14.0 UTC 9.2,
2. Andreanof Islands, Alaska 1957 03 09 14:22:31.9 UTC 9.1
3. Rat Islands, Alaska 1965 02 04 05:01 UTC 8.7
4. East of Shumagin Islands, Alaska 1938 11 10 20:18:41.2 UTC 8.2
5. New Madrid, Missouri 1811 12 16 08:15 UTC 8.1
6. Yakutat Bay, Alaska 1899 09 10 21:41 UTC 8.0
7. Andreanof Islands, Alaska 1986 05 07 22:47 UTC 8.0
8. New Madrid, Missouri 1812 02 07 09:45 UTC ˜8
9. Near Cape Yakataga, Alaska 1899 09 04 00:22 UTC 7.9
10. Fort Tejon, California 1857 01 09 16:24 UTC 7.9

Alaska is King of big ones...