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M1.8 Depth: 9.4 km

M1.8 Earthquake near Pittsburg County, Oklahoma (United States)

UTC time: 2026-08-11 09:03:55 UTC Local time: —

About this earthquake

On August 11, 2026 at 09:03 UTC, a magnitude M1.8 earthquake occurred near Pittsburg County, Oklahoma (United States). The hypocenter lay relatively close to the surface at around 9 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 182 earthquakes were recorded in the past 24 hours, the strongest reaching M4.0.

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Depth profile

Depth profile Depth: 9.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 9.4 km
Shallow
9.4 km
9.4 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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