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United States · Wyoming

M1.5 Earthquake near Park County, Wyoming (United States)

UTC time: 2026-09-21 20:33:09 UTC Local time: —

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About this earthquake

A magnitude M1.5 earthquake was recorded near Park County, Wyoming (United States) on September 21, 2026 at 20:33 UTC. With a focal depth of about 14 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 186 earthquakes, the strongest at M3.0.

Details

ID
e1f1f1d45f4e4d08f9fc1b9246e286f0b592556e
Magnitude
M1.5
Depth
13.7 km
UTC time
2026-09-21 20:33:09 UTC
Local time
—
Country
United States
State
Wyoming
City
Park County
County
Park County
Source
usgs
Coordinates
44.67650, -110.05600
Temperature
15.5°C

Depth profile

Depth profile Depth: 13.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 13.7 km
Shallow
13.7 km
13.7 km — close to 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

Volcanoes nearby

  • Hell's Half Acre
    Distance: 232 km ·Shield ·Elevation: 1'632 m ·Last eruption: -3250 ·United States
  • Craters of the Moon
    Distance: 311 km ·Volcanic field ·Elevation: 2'005 m ·Last eruption: -130 ·United States
  • Wapi Lava Field
    Distance: 322 km ·Shield ·Elevation: 1'597 m ·Last eruption: -300 ·United States
  • Black Butte Crater Lava Field
    Distance: 382 km ·Shield ·Elevation: 1'478 m ·Last eruption: -8180 ·United States

Wyoming

Context for this earthquake

21 Sep 2025 – 21 Sep 2026 · M ≥ 2.0 · 41 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

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Historic earthquake map · United States

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Country statistics · United States

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