Overview
- USGS recorded a mid-3 magnitude quake around 1:30 a.m., with preliminary estimates between 3.5 and 3.8.
- The epicenter was a few kilometers northwest of Ohlman in the Ozark Dome region at a depth near 8.8 kilometers.
- Shaking was reported across a broad area, from the St. Louis region to Champaign, including communities near Taylorville.
- Authorities reported no damage following the early-morning temblor.
- The area borders the more active New Madrid seismic zone, where Illinois officials cite a 25%–40% chance of a magnitude 6.0+ quake over 50 years.