USGS Home
Contact USGS
Search USGS
Earthquake Hazards Program
Home
About Us
Contact Us
Earthquakes
Hazards
Learn
Prepare
Monitoring
Research
M4.0 – Illinois
Monday, April 21, 2008 at 05:38:29 UTC
Monday, April 21, 2008 at 00:38:29 CDT
Did You Feel It? — Tell Us !
38.48°N 87.86°W
Depth: 10km
Maps
Graphs
Responses
Downloads
