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Biggest Earthquakes in Ohio - USGS Data

Explore the 20 biggest earthquakes across Ohio in the past 365 days, sourced from USGS data. View significant and minor quakes on our interactive map. No major quakes recorded? Check activity in nearby regions.

Note: This page shows the 20 biggest earthquakes in the region in the past 365 days, regardless of magnitude. Earthquakes smaller than M4.0 are removed after 365 days.

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Summary of Biggest Earthquakes

Magnitude Distribution (all magnitudes)

  • 13 M1.5–2.9 earthquakes

  • 4 M3.0–3.9 earthquakes

  • 3 M5.0–5.9 earthquakes

Largest Earthquake

M5.4 at 3 km NNW of Kettlersville, Ohio on 3/9/1937

Most Recent Major Earthquake

M2.5 at 6 km ESE of Madison, Ohio on 5/12/2025

Oldest Major Earthquake

M5.0 at 3 km E of New Knoxville, Ohio on 3/2/1937

Quick Stats

Time Since Last Earthquake

21 days since the last earthquake (M2.5 at 6 km ESE of Madison, Ohio on 5/12/2025)

Average Magnitude

2.96 (range: M1.8–M5.4)

Largest Earthquake by Depth

Deepest: M3.1 at 25.9 km (2 km NNW of Oak Hill, Ohio, 2/3/2025)

Shallowest: M2.8 at 0.6 km (2 km SSE of Buffalo, Ohio, 4/29/2025)

Biggest Earthquakes in Ohio - USGS Data - QuakePulse