[hinckley buzzard]

Sigh. What is the historical record of earthquakes in Arkansas? Does current activity differ markedly from past periods of heightened activity? If not, then what's the point?

[mathluv]

The New Madrid fault last had a major quake in the early 1800’s. It would be felt in Texas if another occurred.

[mathluv]

Check it out. http://quake.ualr.edu/public/nmfz.htm

[Pete from Shawnee Mission]

The Ozark plateau was pushed up by vulcanism. Igneous rocks are not aquifers that carry oil or water. There are sedimenary rocks on the top of the plateau, but that would not affect rocks 900+ feet above sea level.

Here is the USGS website;

http://earthquake.usgs.gov/earthquakes/

If you want to see a real earthquake cluster go look at the Imperial Valley which at times has shown over 1400 earthquakes showing for a week’s timeframe. That began long before the gulf blowout.

http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US10/27.37.-120.-110.php