A second earthquake of the day occurs in southeastern Missouri

Feb 21, 2012

The U.S. Geological Survey is reporting that, in addition to the 4.0 magnitude earthquake centered near East Prairie, Mo. early this morning, a second, smaller earthquake originated today near the same location in the New Madrid Seismic Zone. 

The second earthquake happened around 11:05 a.m.

You can see the two earthquakes, represented by the two blue squares, above. There are more interactive maps and resources for you on the USGS website.

People in at least nine states reported feeling the effects of the day's first earthquake, which occurred around 4 a.m.