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United States · Idaho

M2.9 Earthquake near Custer County, Idaho (United States)

UTC time: 2026-09-05 10:03:21 UTC Local time: —

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About this earthquake

A magnitude M2.9 earthquake was recorded near Custer County, Idaho (United States) on September 5, 2026 at 10:03 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 167 earthquakes, the strongest at M3.7.

Details

ID
cbaf2664b44af6577441cb01d2241dcddb1829d8
Magnitude
M2.9
Depth
10.0 km
UTC time
2026-09-05 10:03:21 UTC
Local time
—
Country
United States
State
Idaho
City
Custer County
County
Custer County
Source
usgs
Coordinates
44.23320, -115.01170
Temperature
2.2°C

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 km
10 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

  • Black Butte Crater Lava Field
    Distance: 128 km ·Shield ·Elevation: 1'478 m ·Last eruption: -8180 ·United States
  • Craters of the Moon
    Distance: 155 km ·Volcanic field ·Elevation: 2'005 m ·Last eruption: -130 ·United States
  • Wapi Lava Field
    Distance: 208 km ·Shield ·Elevation: 1'597 m ·Last eruption: -300 ·United States
  • Hell's Half Acre
    Distance: 221 km ·Shield ·Elevation: 1'632 m ·Last eruption: -3250 ·United States
  • Jordan Craters
    Distance: 231 km ·Volcanic field ·Elevation: 1'473 m ·Last eruption: -1250 ·United States
  • Diamond Craters
    Distance: 326 km ·Volcanic field ·Elevation: 1'435 m ·Last eruption: -5610 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Stanley AirportUnited States
    6.7 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-07

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Idaho

Context for this earthquake

07 Sep 2025 – 07 Sep 2026 · M ≥ 2.0 · 42 Catalogue entries

Of 41 other entries for this area and period, 11 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

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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