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M2.3 Depth: 3.2 km

M2.3 Earthquake near Grady County, Oklahoma (United States)

UTC time: 2026-08-17 23:33:09 UTC Local time: —

About this earthquake

A magnitude M2.3 earthquake was recorded near Grady County, Oklahoma (United States) on August 17, 2026 at 23:33 UTC. The hypocenter lay relatively close to the surface at around 3 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 183 earthquakes were recorded in the past 24 hours, the strongest reaching M4.8.

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Depth profile

Depth profile Depth: 3.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 3.2 km
Shallow
3.2 km
3.2 km — shallower than the regional average (15.4 km)
Regional average: 15.4 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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