That mid-morning jolt was actually the sixth aftershock from the 4:37 a.m. magnitude 5.2 earthquake, according to reports from seismologists.
Here's the magnitude, time and epicenter location of this morning's earthquake activity in southeastern Illinois:
4.6 10:14:16 - 8 mi E of West Salem, IL
2.6 06:55:57 - 6 mi NW of Mount Carmel, IL
2.2 05:46:24 - 4 mi NNE of Bellmont, IL
2.4 05:36:33 - 6 mi NNE of Bellmont, IL
2.5 05:15:35 - 3 mi S of Noble, IL
2.5 05:03:59 - 4 mi NW of Mount Carmel, IL
5.2 04:37:00 - 6 mi NW of Mount Carmel, IL
The ones in the magnitude 2 range are called micro-earthquakes and usually go unnoticed by most people.
BTW, the Associated Press is behind the curve here. They're reporting only four aftershocks, concluding with the 4.6 temblor at 10:14 a.m.
Hah!
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