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M0.9 Depth: 4.8 km

M0.9 Earthquake near 22 km SSW of Mammoth, Wyoming (United States)

UTC time: 2025-12-08 22:39:30 UTC Local time: —

About this earthquake

A magnitude M0.9 earthquake was recorded near 22 km SSW of Mammoth, Wyoming (United States) on December 8, 2025 at 22:39 UTC. With a focal depth of about 5 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 197 earthquakes, the strongest at M4.7.

Details

Magnitude
M0.9
Depth
4.8 km
UTC time
2025-12-08 22:39:30 UTC
Local time
—
Country
United States
City
Wyoming
Source
usgs
Coordinates
44.79783, -110.84783
Temperature
-4.7°C

Map

Depth profile

Depth profile Depth: 4.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 4.8 km
Shallow
4.8 km
4.8 km — shallower than the regional average (15.6 km)
Regional average: 15.6 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

Volcanoes nearby

  • Hell's Half Acre
    Distance: 193 km ·Shield ·Elevation: 1'632 m ·Last eruption: -3250 ·United States
  • Craters of the Moon
    Distance: 264 km ·Volcanic field ·Elevation: 2'005 m ·Last eruption: -130 ·United States
  • Wapi Lava Field
    Distance: 285 km ·Shield ·Elevation: 1'597 m ·Last eruption: -300 ·United States
  • Black Butte Crater Lava Field
    Distance: 333 km ·Shield ·Elevation: 1'478 m ·Last eruption: -8180 ·United States

Historic earthquake map · United States

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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