Devastating earthquakes in Haiti and Chile have seismic activity on the minds of many.

Then there was the news this past Tuesday that a small earthquake had shaken southeast Missouri. That earthquake had a magnitude of 3.7 and occurred about 15 miles from Sikeston.

The earthquake occurred within the New Madrid Seismic Zone, which includes southeastern Missouri, northeastern Arkansas, southern Illinois and western Kentucky and Tennessee.

The U.S. Geological Survey’s website – http://earthquake.usgs.gov/earthquakes/ – is a good source for those interested in ...