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M1.3 Depth: 7.2 km

M1.3 Earthquake near Grant County, Oklahoma (United States)

UTC time: 2026-08-27 15:45:19 UTC Local time: —

About this earthquake

On August 27, 2026 at 15:45 UTC, a magnitude M1.3 earthquake occurred near Grant County, Oklahoma (United States). With a focal depth of about 7 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 182 earthquakes, the strongest at M3.6.

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Depth profile

Depth profile Depth: 7.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 7.2 km
Shallow
7.2 km
7.2 km — shallower than the regional average (15.3 km)
Regional average: 15.3 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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