QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

18 km N of Leadore, Idaho

Yes. A magnitude 3.2 earthquake was recorded 18 km N of Leadore, Idaho, at 1:38 pm MDT on 25 May 2026 (19:38 UTC), 5.7 km deep.

· 5.7 km deep · released about 1,900 lb of TNT

10 km30 km60 km120 km N Lemhi County 42 kmBeaverhead County 49 kmCuster County 95 kmClark County 101 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Idaho today
every earthquake in Idaho in the last 24 hours
Magnitude
M 3.2 (ml)
Depth
5.7 km below the surface
Felt
no reports yet
Nearest
Lemhi County, 42 km WNW
Nearest mapped fault
Beaverhead fault, 9 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 98 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 46 km (29 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× more

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.1 19 km NW of Lima, Montana · 49 km E of this epicentre
  2. 5.1 22 km NW of Lima, Montana · 46 km E of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 44.8482, -113.3617. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lemhi County, ID 42 km (26 mi) WNW earthquakes near Lemhi County
Beaverhead County, MT 49 km (30 mi) NE earthquakes near Beaverhead County
Custer County, ID 95 km (59 mi) SW earthquakes near Custer County
Clark County, ID 101 km (63 mi) SE earthquakes near Clark County
Madison County, MT 125 km (78 mi) ENE earthquakes near Madison County
Silver Bow County, MT 129 km (80 mi) NNE earthquakes near Silver Bow County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

2 earthquakes have been recorded within 50 km since this one.

  1. 1.3 35 km NW of Lima, Montana
  2. 1.7 33 km NW of Lima, Montana

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.