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United States · Kansas

M3.0 Earthquake near Graham County, Kansas (United States)

UTC time: 2026-09-28 22:54:44 UTC Local time: —

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About this earthquake

A magnitude M3.0 earthquake was recorded near Graham County, Kansas (United States) on September 28, 2026 at 22:54 UTC. With a focal depth of about 5 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 event was recorded by USGS. United States: 175 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

ID
04efad86e86d9141cf73dedacd9dffae3bd52fa5
Magnitude
M3.0
Depth
5.0 km
UTC time
2026-09-28 22:54:44 UTC
Local time
—
Country
United States
State
Kansas
City
Graham County
County
Graham County
Source
usgs
Coordinates
39.36360, -99.74580
Temperature
24.8°C

Depth profile

Depth profile Depth: 5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 5 km
Shallow
5 km
5 km — shallower than the regional average (15.2 km)
Regional average: 15.2 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

United States

Context for this earthquake

28 Sep 2025 – 28 Sep 2026 · M ≥ 3.0 · 1,427 Catalogue entries

Of 1,426 other entries for this area and period, 1,239 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

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