Magnitude 4.2 - ILLINOIS

2004 June 28 06:10:51 UTC

Earthquake Details

This event has been reviewed by a seismologist.

Magnitude	4.2
Date-Time	Monday, June 28, 2004 at 06:10:51 UTC Monday, June 28, 2004 at 01:10:51 AM at epicenter Time of Earthquake in other Time Zones
Location	41.443°N, 88.927°W
Depth	5 km (3.1 miles) set by location program
Region	ILLINOIS
Distances	15 km (10 miles) NNW of Ottawa, Illinois 60 km (40 miles) SW of Aurora, Illinois 115 km (70 miles) WSW of Chicago, Illinois 190 km (120 miles) NNE of SPRINGFIELD, Illinois
Location Uncertainty	horizontal +/- 4.9 km (3.0 miles); depth fixed by location program
Parameters	NST= 37, Nph= 37, Dmin=196.8 km, Rmss=0.97 sec, Gp= 72°, M-type=teleseismic moment magnitude (Mw), Version=9
Source	USGS NEIC (WDCS-D)
Event ID	uskgad

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Earthquake Summary

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USGS News Release

Felt Reports

mbLg 4.5 (GS). Felt (V) at Earlville, Oglesby, Ottawa and Tonica; (IV) at Chillicothe, Dalzell, Frankfort, Granville, Hinckley, Hinsdale, Ladd, La Salle, Lockport, Marseilles, Mendota, Monee, Paw Paw, Peru, Princeton, Rock Island, Seneca, Sheridan, Somonauk, Sterling, Streator, Sublette and Utica. Also felt (IV) at Milwaukee, Wisconsin. Felt in Illinois, Indiana, Iowa, Michigan, Missouri and Wisconsin.

Tectonic Summary

Earthquake Information for Illinois

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Did you feel it? Report shaking and damage at your location. You can also view a map displaying accumulated data from your report and others.

Scientific & Technical Information

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver