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M0.4 Depth: 3.9 km

M0.4 Earthquake near 6 km S of Harrison, Montana (United States)

UTC time: 2025-05-22 15:08:52 UTC Local time: —

About this earthquake

A magnitude M0.4 earthquake was recorded near 6 km S of Harrison, Montana (United States) on May 22, 2025 at 15:08 UTC. The hypocenter lay relatively close to the surface at around 4 km, increasing how strongly it was felt. 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 M3.6.

Details

Magnitude
M0.4
Depth
3.9 km
UTC time
2025-05-22 15:08:52 UTC
Local time
—
Country
United States
City
Montana
Source
usgs
Coordinates
45.64133, -111.79467
Temperature
7.2°C

Map

Depth profile

Depth profile Depth: 3.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 3.9 km
Shallow
3.9 km
3.9 km — shallower than the regional average (15.3 km)
Regional average: 15.3 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: 245 km ·Shield ·Elevation: 1'632 m ·Last eruption: -3250 ·United States
  • Craters of the Moon
    Distance: 286 km ·Volcanic field ·Elevation: 2'005 m ·Last eruption: -130 ·United States
  • Wapi Lava Field
    Distance: 327 km ·Shield ·Elevation: 1'597 m ·Last eruption: -300 ·United States
  • Black Butte Crater Lava Field
    Distance: 340 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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