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A very small earthquake occurred on Fri Oct 3, 2025 at about 21:54:24 CDT (Oct 4, 2025 02:54:24 UTC) 2.96 km east of Philadelphia, TN. The magnitude was 1.8.

    Origin Time: 2025/10/04 02:54:24.2600
      Magnitude: 1.8
     Hypocenter: 35.67667 deg latitude -84.36716 deg longitude 
          Depth: 18.360 km
   Number Picks: 19
     Number Sta: 009
Closest Station: 15.00 km
            RMS: 0.08 sec
            Gap: 73.00 deg
            seh: 0.32 km
            sez: 0.77 km
        magtype: d
        Quality: 1.00
           evid: 60614556

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.