May be of interest and(or) come up in your library:

M3.2 Quarry_blast - 0km NNW of Countryside, Illinois
Event Page: http://earthquake.usgs.gov/earthquakes/eventpage/usb000ksfx#summary

Information also available at: http://www.usgs.gov/blogs/features/usgs_top_story/magnitude-3-7-seismic-event-in-illinois/?from=title

Also, this topic came through information requests:
Gas injection may have triggered earthquakes in the Cogdell oil field, Texas

Earthquake Study Points to Possible Carbon Injection Risks

Enjoy the day,

Emily Wild
Librarian (Physical Scientist)
U.S. Geological Survey
Denver Library
Box 25046, MS 914
Denver Federal Center
Denver, CO 80225-0046
ph: (303) 236-1003
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USGS Libraries: http://library.usgs.gov
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Professional Page: http://profile.usgs.gov/ecwild