Since the 7.7 a couple days ago smaller EQ's have echoed across the US. There was even one in Arkansas.
The New Madrid fault zone is six times bigger than the San Andreas fault zone in California and it covers portions of Illinois, Indiana, Missouri,
Arkansas, Kentucky, Tennessee and Mississippi. The biggest earthquakes in the history of the United States were caused by the New Madrid fault. Now
there are fears that the New Madrid fault zone could be coming to life again, and if a "killer earthquake" does strike it could change all of our
About 200 years ago, in 1811 and 1812, there were four earthquakes that were so powerful in the area of the New Madrid fault zone that they are still
talked about today. All four of the quakes were estimated to have been magnitude-7.0 or greater. It is said that those earthquakes opened deep
fissures in the ground, caused the Mississippi River to run backwards and that they were felt as far away as Boston.
With the many quakes in Oklahoma/Arkansas alone.. I've lived here my whole life and just until the past couple years have I ever experienced any type
of feelable seismic activity. Since '68 no large EQ's have come from New Madrid, until recently quite a few of what I would refer to as likely being
foreshocks point towards New Madrid becoming active again.