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M1.8 Depth: 9.6 km

M1.8 Earthquake near 4 km NW of Ridgely, Tennessee (United States)

UTC time: 2025-12-15 13:03:45 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near 4 km NW of Ridgely, Tennessee (United States) on December 15, 2025 at 13:03 UTC. With a focal depth of about 10 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 223 earthquakes, the strongest at M5.3.

Details

Magnitude
M1.8
Depth
9.6 km
UTC time
2025-12-15 13:03:45 UTC
Local time
—
Country
United States
City
Tennessee
Source
usgs
Coordinates
36.28900, -89.52817
Temperature
-4.8°C

Map

Depth profile

Depth profile Depth: 9.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 9.6 km
Shallow
9.6 km
9.6 km — shallower than the regional average (15.7 km)
Regional average: 15.7 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

Historic earthquake map · United States

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