Latest New Madrid Seismic Zone Stories
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 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.
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.
Although the fault zones beneath the Mississippi River Valley have produced some of the countryâ€™s largest modern earthquakes east of the Rocky Mountains, scientists acknowledge they donâ€™t yet fully understand the Midwestern seismic zone that caused Fridayâ€™s earthquake in southern Illinois.
A researcher at the University of Arkansas says recent research showing a build up of strain in the New Madrid Seismic Zone is inconclusive because the tension can't be seen well enough to determine any earthquake hazard.
Residents of the northeastern part of Arkansas along the New Madrid fault should be prepared for a high-magnitude earthquake, the University of Memphis Center for Earthquake Research and Information says.
The New Madrid seismic zone remains under enough strain to unleash devastating earthquakes, University of Memphis researchers say.
The temblor felt across northwest Tennessee on Thursday caused little damage, but it was strong enough to remind people they live in one of the country's most active earthquake zones.
Two earthquake experts say the quake that produced the deadly tsunami in the Indian Ocean in December should remind residents of the central United States that they live in an area where a devastating quake could occur.