Earthquakes in Jefferson County, Montana
Quiet QuakeIndex 0 / 100
0 quakes of M1.5 or larger in the last 7 days within 50 km. Normal for here is 1 to 3 in a week.
Compared against Jefferson County, Montana's own 10 years · USGS catalogue · updated
The last 30 days
Live · last 7 days
Latest earthquakes within 50 km
None within 50 km in the latest snapshot we hold; the full 7 days load from USGS as this page opens.
Source USGS · snapshot of
Where this is
Map loads when it scrolls into view
Centre 46.124, -112.059 — the Census internal point, from the US Census Bureau Gazetteer (2024). Activity is measured within 50 km of it.
Largest on record nearby
| Magnitude | When | Where |
|---|---|---|
| M 4.0 | 16 km S of Whitehall, Montana | |
| M 3.7 | 5 km NW of Clancy, Montana | |
| M 3.5 | 5 km WNW of Willow Creek, Montana | |
| M 3.4 | 17 km S of Boulder, Montana | |
| M 3.3 | 16 km S of Whitehall, Montana | |
| M 3.3 | 16 km S of Whitehall, Montana | |
| M 3.3 | 17 km S of Whitehall, Montana | |
| M 3.3 | 17 km SSW of Whitehall, Montana |
From the QuakeIndex catalogue, built from the USGS FDSN event service · within 50 km of the centre above.
After an earthquake here
- Report what you felt to USGS — reports go to USGS, not to us, and they are what produces the intensity maps
- What to do during and after an earthquake
- QuakeIndex does not issue warnings. For early warning, ShakeAlert reaches phones through Wireless Emergency Alerts and the MyShake app