Over the past 30 days, Montana has recorded 2 earthquakes of magnitude 2.5 or greater in our tracker. The remaining 2 fell in the M2.5–M3.9 band. By depth: 2 shallow (<70 km). 1 of the epicenters were offshore. 1 event produced at least one felt report, totalling 2 citizen submissions to the USGS Did You Feel It? system. Focal depths ranged from 5.7 km to 8.6 km. All 2 solutions have been reviewed by a USGS seismologist.
Leading the list is a magnitude 3.2 event near 18 km N of Leadore, Idaho at 5.7 km depth. The second-ranked event, at magnitude 2.9 near 15 km NNE of Twin Bridges, Montana, trails by 0.3 magnitude units — a narrow gap, indicating two comparably energetic events in the current window.
Each row in the table below includes a narrative summary of the event, ordered by time. Use the column headers to sort or filter by magnitude.
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
6 days ago 2026-06-06 22:22:34 UTC | 2.9ml | 15 km NNE of Twin Bridges, Montana 45.670°, -112.240° | 8.6 km | 2 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 earthquake was recorded 15 km NNE of Twin Bridges, Montana on June 6, 2026 at 22:22 UTC. A small number of nearby observers (2) submitted felt reports to the USGS. At a depth of 8.6 km, the event was shallow crustal. Geolocation places the event at 45.670°N, -112.240°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-25 2026-05-25 19:38:33 UTC | 3.2ml | 18 km N of Leadore, Idaho 44.848°, -113.362° | 5.7 km | - | - | - | ✓ Reviewed | USGS → |
On May 25, 2026 at 19:38 UTC, a magnitude 3.2 earthquake struck 18 km N of Leadore, Idaho. It is the largest earthquake currently listed for Montana over the past 30 days. The hypocenter lay at 5.7 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 44.848°, -113.362°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
18 km N of Leadore, Idaho
2026-05-25
9 km N of Black Eagle, Montana
2026-01-29
Data from USGS Earthquake Hazards Program. Updated every 5 minutes.
Montana experiences regular seismic activity due to the Intermountain Seismic Belt. The 1959 Hebgen Lake earthquake killed 28 people and caused a massive landslide.
In 2026, Montana has recorded 23 earthquakes of magnitude 2.5 or greater so far. The largest earthquake in Montana in 2026 was a magnitude 4.2 event near Black Eagle, Montana. As of today, seismic monitoring continues with 0 earthquakes detected in the past 24 hours and 2 in the last 30 days.
Montana experiences regular seismic activity due to the Intermountain Seismic Belt. The 1959 Hebgen Lake earthquake killed 28 people and caused a massive landslide.
Montana has a Moderate seismic risk level based on historical earthquake data and proximity to active fault lines.
Over the past 30 days, there have been 2 recorded earthquakes in this region. The largest recent earthquake was a magnitude 3.2 event near 18 km N of Leadore, Idaho.
In the past 30 days, 2 earthquakes have been recorded in the Montana region. The number varies based on seismic activity in the area.
The largest recent earthquake in the Montana area was a magnitude 3.2 event that occurred 18 km N of Leadore, Idaho.
Montana has a moderate seismic risk level. Montana experiences regular seismic activity due to the Intermountain Seismic Belt. The 1959 Hebgen Lake earthquake killed 28 people and caused a massive landslide.
Residents should secure heavy furniture, create an emergency kit with supplies for 72 hours, develop a family communication plan, and practice "Drop, Cover, and Hold On" during earthquake drills. Visit our preparedness section for detailed guides.
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