Ill. earthquake a wake-up call

Apr 20, 2008

A U.S. seismologist said the earthquake that jolted the Midwest Friday is a reminder of the risks seismic events pose outside familiar quake areas.

U.S. Geological Survey seismologist Harley Benz earthquakes east of the Mississippi River are actually felt more widely than those in the West.

"Earthquakes of comparable size are felt over greater distances in the East than those occurring in the West," Benz said in a statement. "Earthquakes in the central (United States) are infrequent, but not unexpected."

The magnitude 5.2 earthquake -- centered 38 miles northwest of Evansville, Ind., in the Wabash Valley Seismic Zone -- is the strongest earthquake in southern Illinois since November 1968, when a 5.4 earthquake occurred.

While the earthquake and subsequent magnitude 4.6 aftershock were classified as moderate, the USGS said it is more concerned about the potential for the adjacent New Madrid seismic zone to generate severe earthquakes. A series of three very large earthquakes devastated the area between 1811 and 1812.

Copyright 2008 by United Press International

Explore further: Tropical depression 21W forms, Philippines under warnings

add to favorites email to friend print save as pdf

Related Stories

High earthquake danger in Tianjin, China

Nov 18, 2014

With a population of 11 million and located about 100 km from Beijing (22 million people) and Tangshan (7 million people), Tianjin lies on top of the Tangshan-Hejian-Cixian fault that has been the site of ...

How people respond to a catastrophe on social media

Oct 31, 2014

When an earthquake hits, it makes more than just seismic waves. Extreme events such as earthquakes, tsunamis, and terrorist attacks also produce waves of immediate online social interactions, in the form ...

Recommended for you

Questions of continental crust

3 hours ago

Geological processes shape the planet Earth and are in many ways essential to our planet's habitability for life. One important geological process is plate tectonics – the drifting, colliding and general ...

Better forecasts for sea ice under climate change

Nov 25, 2014

University of Adelaide-led research will help pinpoint the impact of waves on sea ice, which is vulnerable to climate change, particularly in the Arctic where it is rapidly retreating.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.