We usually think of California when we think earthquakes in the U.S., but one of the most significant earthquakes to strike in North America actually happened in the New Madrid Seismic Zone two hundred years ago. Check out this site http://www.newmadrid2011.org/ to see information about the “Earthquake Tour,” commemorating the bicentennial of the New Madrid quake in 1811. The tour begins tomorrow (Feb. 4, 2011) and continues on through this year with sessions in Tennessee, Kentucky, Arkansas, and the other states adjacent to the New Madrid fault. Be sure to explore the “Quick Links” section, especially the wonderful “Great Central U.S. Shakeout” site at http://shakeout.org/centralus/. The Central United States Earthquake Consortium (CUSEC) site at http://www.cusec.org/ is also a rich resource for increasing awareness and knowledge about earthquakes and for advice about how to be prepared and stay safe in an earthquake.