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M1.8 Depth: 6.7 km

M1.8 Earthquake near 6 km E of Calumet, Oklahoma (United States)

UTC time: 2025-09-18 22:58:31 UTC Local time: —

About this earthquake

On September 18, 2025 at 22:58 UTC, a magnitude M1.8 earthquake occurred near 6 km E of Calumet, 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: 176 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

Magnitude
M1.8
Depth
6.7 km
UTC time
2025-09-18 22:58:31 UTC
Local time
—
Country
United States
City
Oklahoma
Source
usgs
Coordinates
35.60917, -98.05317
Temperature
25.1°C

Map

Depth profile

Depth profile Depth: 6.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 6.7 km
Shallow
6.7 km
6.7 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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