Freezing Fog
6°FFreezing FogFull Forecast

A quarry blast, not an earthquake

USGS: Shaking a quarry blast, not earthquake

Published: Tuesday, Nov. 5, 2013 1:15 a.m. CST

INDIAN HEAD PARK (AP) – The U.S. Geological Survey says the shaking with a measured magnitude 3.2 in northern Illinois was a blast and not an earthquake.

USGS geophysicist Don Blakeman also says it appears Monday afternoon’s blast came from within a rock quarry but that the exact location of the blast had not yet been determined. He says that all indications so far leads experts to believe that the blast came from the quarry. That includes that the epicenter is in an area close to the quarry.

Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

National video



Reader Poll

How concerned are you about the possibility of a terrorist attack on a U.S. shopping mall?
Very concerned
Somewhat concerned
Not very concerned
Not concerned at all