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M3.9 Depth: 10.0 km

M3.9 Earthquake near Sunan Yugur Autonomous County, Gansu (China)

UTC time: 2026-08-06 10:32:33 UTC Local time: —

About this earthquake

A magnitude M3.9 earthquake was recorded near Sunan Yugur Autonomous County, Gansu (China) on August 6, 2026 at 10:32 UTC. With a focal depth of about 10 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 EMSC and cross-checked across seismological networks.

Map

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 km
10 km — shallower than the regional average (18.8 km)
Regional average: 18.8 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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