earthquake

Natural Disasters
9:42 pm
Wed November 12, 2014

Risk Of Earthquake In St. Louis Higher Than People May Realize

In this figure, the dots mark the epicenters of earthquakes of magnitude 2.0 or greater between January 1974 and December 2013. The stars mark the epicenters of earthquakes of magnitude 5.0 or greater since 1800. Geological structures identified in the figure include the Ste. Genevieve, New Madrid and Wabash Valley seismic areas, Illinois Basin, Ozark Dome (OD) and Reelfoot Rift (RR).
Credit Courtesy Indiana University

With the New Madrid fault just a hundred miles south of St. Louis, it’s long been known that the region is at a greater risk for an earthquake than other parts of the Midwest. But new research indicates that St. Louis is part of an area that has seismic activity of its own.

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New Madrid Fault
9:54 pm
Sun August 31, 2014

After Napa, Missourians Weigh Costs of Earthquake Insurance

National Seismic Hazard map of the continental United States, released in July of 2014. This view measures peak ground acceleration.
Credit United States Geological Survey

Last week, a 6.1 magnitude earthquake in Napa, Calif. ripped through a region where less than 6 percent of homeowners and renters have earthquake insurance.

Could the same thing happen along the New Madrid Fault in southeastern Missouri?

Statewide, about one-third of Missourians are insured against earthquakes. But those who live in the most earthquake-prone areas are much less likely to have coverage.

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Emergency Preparedness - Earthquakes
4:51 pm
Thu February 7, 2013

Annual Earthquake Drill Shakes Things Up In Missouri, Illinois

Earthquake Program Manager Steve Besemer of the Missouri State Emergency Management Agency talks about earthquake safety with third graders at Mary Paxton Keeley Elementary School in Columbia, Mo.
Missouri Shake Out/SEMA

This morning, residents of Missouri, Illinois, and seven other Central U.S. states participated in an earthquake preparedness drill.

The annual event is known as the Great Central U.S. ShakeOut. This year, close to three million people registered to participate.

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Research News
12:45 pm
Thu September 27, 2012

Big Quakes Signal Changes Coming To Earth's Crust

A prison official examines the damage a day after a powerful earthquake hit the west coast of Indonesia in Banda Aceh on April 12.
Adek Berry AFP/Getty Images

Originally published on Thu September 27, 2012 8:31 am

On April 11 of this year, an extraordinary cluster of earthquakes struck off Sumatra. The largest shock, magnitude 8.7, produced stronger ground-shaking than any earthquake ever recorded. And it surprised seismologists by triggering more than a dozen moderate earthquakes around the world.

The quakes are also a sign of big changes to come in the Earth's crust.

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Morning round-up
8:20 am
Tue May 22, 2012

Morning headlines - Tuesday, May 22, 2012

(via Flickr/IndofunkSatish)

St. Louis police express concerns with cameras in patrol cars

Officers with the St. Louis Metropolitan Police Department are seeking ways to avoid driving patrol cars equipped with cameras over concerns that footage from the cameras is being used against them.

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

A second earthquake of the day occurs in southeastern Missouri

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.
(USGS website)

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

A U.S. Geological Survey map of the United States showing zones of seismic hazard.
(USGS)

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

Caption: This photo, taken in Blytheville, Missouri, in 1904, shows sand blows (lighter patches) resulting from the New Madrid earthquakes.
(M.L. Fuller, image 137/USGS)

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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Morning round-up
9:33 am
Wed December 14, 2011

Morning headlines: Wednesday, December 14, 2011

The New Madrid earthquakes broke up rock like this section of rock face, which was later filled with sand. This photo, from Mississippi County, Mo., was taken in 1904.
M.L. Fuller (Image 336)/USGS

Mo. schools and residents to prepare for next big earthquake

It was nearly 200 years ago that the first in a series of massive earthquakes shook Missouri and much of the nation. Now, several Missouri school districts will take part in a drill to prepare for the next big one.

State officials say that nearly 100 districts and individual schools have registered for Missouri's second statewide earthquake drill at 10:15 a.m. on Feb. 7. Meanwhile, more than 146,000 residents are also registered for the drill, called the "Great Central U.S. ShakeOut."

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New Madrid Fault / Earthquakes
4:37 am
Sat August 27, 2011

At New Madrid fault, shaky guesses on next quake

The New Madrid earthquakes broke up rock like this section of rock face, which was later filled with sand. This photo, from Mississippi County, Mo., was taken in 1904.
M.L. Fuller (Image 336) USGS

Originally published on Sat August 27, 2011 9:53 am

The magnitude-5.8 earthquake that rattled the eastern U.S. on Tuesday took everyone — even geologists — by surprise. But even when there are reasons to think an earthquake could be around the corner, scientists still can't make good predictions.

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