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Science / Earthquakes
3:09 pm
Tue February 21, 2012

A second earthquake of the day occurs in southeastern Missouri

Credit (USGS website)
A map highlighting the two separate earthquakes that occurred today in southeast Missouri. The two incidences are represented by the two blue squares on the map.
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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.

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Emergency Preparedness - Earthquakes
5:51 pm
Tue February 7, 2012

Central U.S. marks 200th anniversary of New Madrid quakes with earthquake drill

Credit (USGS)
A U.S. Geological Survey map of the United States showing zones of seismic hazard.
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The Great Central U.S. ShakeOut is an annual event intended to raise awareness about what to do in the event of a major earthquake.

Steve Besemer of the Missouri Emergency Management Agency says in Missouri and Illinois, more than 900,000 people, most of them students, participated in today's drill.

He says if an earthquake hits, there are three simple steps people should follow.

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Earthquakes - New Madrid
4:00 pm
Thu December 15, 2011

200 years after the New Madrid earthquakes, the legends live on

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Credit (M.L. Fuller, image 137/USGS)
Caption: This photo, taken in Blytheville, Missouri, in 1904, shows sand blows (lighter patches) resulting from the New Madrid earthquakes.
Credit (USGS)
A U.S. Geological Survey map of the United States showing zones of seismic hazard.
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Friday, Dec. 16, marks the 200th anniversary of the first of the New Madrid earthquakes, a series of large tremors centered in northeastern Arkansas and southeastern Missouri.

The earthquakes of 1811 and 1812 were so big, legend has it, they made the Mississippi River run backwards.

Seismologist Susan Hough of the U.S. Geological Survey in Pasadena, Calif., says that’s actually true – at least where the fault crosses underneath the river channel.

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