Light Rain Fog/Mist
36°FLight Rain Fog/MistFull Forecast

USGS: Shaking a quarry blast, not earthquake

Published: Monday, Nov. 4, 2013 1:10 p.m. CST • Updated: Monday, Nov. 4, 2013 2:46 p.m. CST

INDIAN HEAD PARK – 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 said 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. Hesaid  that all indications so far lead experts to believe that the blast came from the quarry. That includes that the epicenter is in an area close to the quarry.

Originally, the USGS said the shaking was an earthquake, but the agency soon determined it was a blast.

The blast shook various communities southwest of Chicago, including Indian Head Park and Countryside. There were no immediate reports of damage or injuries.

Get breaking and town-specific news sent to your phone. Sign up for text alerts from the Northwest Herald.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Reader Poll

How would you grade Bears quarterback Jimmy Clausen's performance?
A
B
C
D
F