4.5-Magnitude Aftershocks Rumble Illinois, Indiana

The U.S. Geological Survey says it has recorded one of the strongest aftershocks so far from Friday's Illinois earthquake.

Geologists say the temblor just before 12:40 a.m. Monday registered at 4.5 magnitude at its epicenter about 5 miles northwest of Mount Carmel. The location is in the same area as Friday's early-morning 5.2-magnitude earthquake, which was followed by a 4.5 magnitude aftershock about 5 1/2 hours later.

The Monday morning aftershock was at least the 15th since Friday's quake.

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