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Latest Geology of Illinois Stories

Airplane Scans New Madrid For Geological Activity
2013-07-10 09:36:18

Brett Smith for redOrbit.com - Your Universe Online Folks living near the Mississippi River where Arkansas, Tennessee, Missouri and Kentucky converge should expect to see a low-flying, red-and-white Cessna today. Do not be alarmed, U.S. Geological Survey officials announced. The region, known as the New Madrid seismic zone, is of particular interest to geologists and the federal agency is using low-level flights, being performed by specially trained pilots, to detect subtle local...

2011-04-08 15:43:37

Seismology tip sheet: New Madrid seismic zone, Japan quake, earthquake triggering and more among topics to be discussed This tip sheet highlights presentations at the upcoming international meeting of SSA, which is an international scientific society devoted to the advancement of seismology and its applications in understanding and mitigating earthquake hazards and in imaging the structure of the Earth. These summaries reflect submitted abstracts and the actual presentations will include...

2011-02-08 23:23:55

2000 years of Chinese records shows migrating mid-continent earthquakes This December marks the bicentennial of the New Madrid earthquakes of 1811-12, which are the biggest earthquakes known to have occurred in the central U.S. Now, based on the earthquake record in China, a University of Missouri researcher says that mid-continent earthquakes tend to move among fault systems, so the next big earthquake in the central U.S. may actually occur someplace else other than along the New Madrid...

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2010-12-25 06:40:00

Central Arkansas has been hit with a series of earthquakes recently, more than 500 since September 20. According to the U.S. Geological Survey (USGS), most were hardly noticeable but one stood out prominently when it hit the Richter scale at a 4.0 on October 11. Geologists can't say whether the quakes will end anytime soon. Dr. Horton of the University of Memphis feels that the ample amount of earthquakes in this state is quite unusual. "In the New Madrid Seismic Zone there's approximately...

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2010-07-29 07:20:00

Researchers said on Wednesday that the risk of earthquakes in the U.S. Midwest may be more widespread than geologists had previously thought.  They found that swept away sediments at the end of the last ice age could have triggered a series of large earthquakes that started in 1811 in the New Madrid seismic zone. They reported in the journal Nature that this suggests these fault segments are unlikely to fail again soon, but the same process could trigger earthquakes on nearby fault...

2009-03-13 14:04:16

U.S. scientists say the New Madrid seismologic fault system in the Midwest and South may be in the process of shutting down. Purdue and Northwestern University researchers have been using global positioning system measurements to determine the earthquake risk to parts of Illinois, Indiana, Tennessee, Arkansas and Kentucky. The fault motion has been much less than expected, Purdue researchers said Friday. The last major earthquake in the New Madrid seismic zone was in 1812. Our findings...

2009-03-13 13:10:20

The New Madrid fault system does not behave as earthquake hazard models assume and may be in the process of shutting down, a new study shows.A team from Purdue and Northwestern universities analyzed the fault motion for eight years using global positioning system measurements and found that it is much less than expected given the 500- to 1,000-year repeat cycle for major earthquakes on that fault. The last large earthquakes in the New Madrid seismic zone were magnitude 7-7.5 events in 1811...

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2008-11-21 14:09:50

A government report said on Thursday that people in a vast seismic zone in the southern and midwestern United States would face catastrophic damage if a major earthquake struck in the area. The report also urged builders to keep that risk in mind when developing construction plans. If earthquakes strike in what geologists define as the New Madrid Seismic Zone, they would cause the highest economic losses due to a natural disaster in the United States, according to the Federal Emergency...

2008-06-23 06:00:21

Research and Markets http://www.researchandmarkets.com/research/a04dfa/map_of_illinois_ba has announced the addition of the "Map of Illinois Basin Activity and Generalized Coal Control" map to their offering. The Illinois Basin Coal Activity and Generalized Coal Control and Coal Activity Map shows the major property holders as well as the locations of all mines, projects, reserves, rail and barge loadouts, etc. This strategic map is a must for anyone interested in the basin....

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2008-04-25 08:40:00

Wabash Valley Fault - 'New Kid on the Block' To the surprise of many, the earthquake on April 18, 2008, about 120 miles east of St. Louis, originated in the Wabash Valley Fault and not the better-known and more-dreaded New Madrid Fault in Missouri's bootheel.The concern of Douglas Wiens, Ph.D., and Michael Wysession, Ph.D., seismologists at Washington University in St. Louis, is that the New Madrid Fault may have seen its day and the Wabash Fault is the new kid on the block.The earthquake...