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A small earthquake occurred on Sat Jul 27, 2024 at about 01:50:38 CDT (Jul 27, 2024 06:50:38 UTC) 1.47 km south of O'Fallon, IL. The magnitude was 2.4.

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    Origin Time: 2024/07/27 06:50:38.8700
      Magnitude: 2.4
     Hypocenter: 38.58150 deg latitude -89.91933 deg longitude 
          Depth: 0.270 km
   Number Picks: 32
     Number Sta: 013
Closest Station: 80.00 km
            RMS: 0.34 sec
            Gap: 81.00 deg
            seh: 0.55 km
            sez: 1.47 km
        magtype: d
        Quality: 1.00
           evid: 60587771

For more information about this earthquake, see the entry in the ANSS Comprehensive Catalog.

This is a preliminary location and magnitude determined by CERI using data provided by the Advanced National Seismic System and cooperating partners. The magnitude and location may change slightly as more data become available.