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McCook Quarry resumes blasting for first time since November earthquake

Posted By Amanda Bayhi On March 15, 2014 @ 4:11 pm In Aggbeat Online,News | No Comments

blasting [1]

McCook Quarry is reportedly set to resume blasting on Monday, according to the Chicago Tribune [2].

The Lehigh Hanson-owned quarry suspended blasting after a 3.2-magnitude earthquake [3] shook parts of Illinois and Wisconsin in November following a routine blast.

Within two weeks of the tremor, officials with the U.S. Geological Survey (USGS) determined that the blast likely caused the earthquake [4]. However, in a Dec. 15 report from The Doings La Grange [5], a geologist says there is not enough data to connect the earthquake to the blast at the quarry.

The Chicago Tribune report notes that the USGS is working to install a more sensitive seismograph at the quarry, which will allow the agency to better monitor seismic activity at the site. The Illinois Department of Natural Resources (DNR) is installing a second seismograph, according to the report.

Lehigh Hanson spokesman Jeff Sieg told the Chicago Tribune that the company intends to continue cooperating with the USGS.


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URL to article: http://www.aggman.com/mccook-quarry-resumes-blasting-for-first-time-since-november-earthquake/

URLs in this post:

[1] Image: http://www.aggman.com/files/2013/03/blasting.jpg

[2] according to the Chicago Tribune: http://www.chicagotribune.com/news/local/suburbs/ct-quarry-blasting-resumes-la-grange-tl-0320-20140321,0,1517114.story

[3] a 3.2-magnitude earthquake: http://www.aggman.com/did-a-quarry-blast-cause-a-3-2-magnitude-tremor/

[4] determined that the blast likely caused the earthquake: http://www.aggman.com/scientists-point-to-quarry-blast-as-cause-of-illinois-earthquake/

[5] in a Dec. 15 report from The Doings La Grange: http://lagrange.suntimes.com/news/quake-LAG-11122013:article

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