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M3.1 Depth: 8.7 km

M3.1 Earthquake near Woods County, Oklahoma (United States)

UTC time: 2026-04-21 03:37:24 UTC Local time: —

About this earthquake

A magnitude M3.1 earthquake was recorded near Woods County, Oklahoma (United States) on April 21, 2026 at 03:37 UTC. With a focal depth of about 9 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Shaking of this size is frequently noticed but usually harmless.

The data is provided by USGS and cross-checked across seismological networks. United States: 153 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

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Depth profile

Depth profile Depth: 8.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8.7 km
Shallow
8.7 km
8.7 km — shallower than the regional average (15.8 km)
Regional average: 15.8 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

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