http://content.usatoday.net/'Frost quakes' shake up parts of Ohio, Indiana
Posted 2/11/2011 6:58 AM ET E-mail | Save | Print
DAYTON, Ohio (AP) %u2014 Experts say shaking felt in western Ohio and neighboring Indiana was caused by a phenomenon known as "frost quakes."
Darke County, Ohio, 911 director Brandon Redmond says reports of rumbling poured in between 5:30 a.m. and 7:30 a.m. on Thursday, though there were people saying they felt the earth moving over an eight-hour span. He says there were no reports of damage.
Emergency management officials in Ohio and Indiana and the Ohio Department of Natural Resources helped make the determination that frost quakes were at work. The Dayton Daily News reports they occur when soil soaked with moisture goes through a quick freeze, causing an expansion and contraction that can be violent.
Redmond says shaking in his own home prompted him to rush out of the shower Thursday morning.
___
Copyright 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
Posted 2/11/2011 6:58 AM ET