Over the past 30 days, Montana has recorded 4 earthquakes of magnitude 2.5 or greater in our tracker. The remaining 4 fell in the M2.5–M3.9 band. By depth: 4 shallow (<70 km). 2 of the epicenters were offshore. 1 event produced at least one felt report, totalling 25 citizen submissions to the USGS Did You Feel It? system. Focal depths ranged from 6.5 km to 11.2 km. All 4 solutions have been reviewed by a USGS seismologist.
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 |
|---|---|---|---|---|---|---|---|---|
1 day ago 2026-07-16 13:20:11 UTC | 3.3ml | 39 km SSE of Mammoth, Wyoming 44.666°, -110.468° | 6.5 km | 25 | - | - | ✓ Reviewed | USGS → |
On July 16, 2026 at 13:20 UTC, a magnitude 3.3 earthquake struck 39 km SSE of Mammoth, Wyoming. It is the largest earthquake currently listed for Montana over the past 30 days. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
5 days ago 2026-07-13 02:10:35 UTC | 2.6ml | 25 km ENE of Seeley Lake, Montana 47.276°, -113.180° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 13, 2026, Montana registered a magnitude 2.6 earthquake 25 km ENE of Seeley Lake, Montana at 02:10 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-01 2026-07-01 23:44:40 UTC | 2.7ml | 48 km NE of Spencer, Idaho 44.712°, -111.833° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 48 km NE of Spencer, Idaho with origin time 23:44 UTC on July 1, 2026. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-01 2026-07-01 00:35:15 UTC | 3.3ml | 19 km S of Lima, Montana 44.460°, -112.611° | 11.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 earthquake was recorded 19 km S of Lima, Montana on July 1, 2026 at 00:35 UTC. This is the deepest earthquake in the current dataset — a shallow crustal event. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
39 km SSE of Mammoth, Wyoming
1 day ago
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 29 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.
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 4 recorded earthquakes in this region. The largest recent earthquake was a magnitude 3.3 event near 39 km SSE of Mammoth, Wyoming.
In the past 30 days, 4 earthquakes have been recorded in the Montana region.
The largest recent earthquake in the Montana area was a magnitude 3.3 event that occurred 39 km SSE of Mammoth, Wyoming.
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