The map shows quakes of M1.5 and up from the last 90 days, the 8 biggest on record, and always the very latest quake — even if it was smaller than M1.5. The list below can include smaller ones the map leaves out. Tap any dot for details.
In the last 30 days, 6 earthquakes of M1.5 or bigger were recorded within 100 km of Three Forks, the biggest of them M2.4. Over the past year, M3.0+ quakes near Three Forks came at 0.3× the usual pace — quieter than normal for this area. The biggest quake on record near Three Forks — records go back to 1980 — was the M4.4 of May 08, 2007, 15:46 UTC: 8 km NNW of Alder, Montana.
How we figure this: 1 quakes of M3.0 or bigger within 100 km in the last 12 months (Nov 03, 2025 – Nov 03, 2026), compared with an average of 3.5 a year across the full calendar years 2016–2025, counted the same way. This compares how often quakes happened in two past periods. It is not a forecast, and it does not mean a big earthquake is on its way — nobody can predict earthquakes.
Latest earthquakes near Three Forks
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M1.0 | 21 km N of Twin Bridges, Montana | Nov 01, 2026, 07:42 AM | 3 km | 62 km WSW |
| M1.0 | 11 km WSW of Sheridan, Montana | Oct 31, 2026, 05:49 PM | 1 km | 80 km SW |
| M1.0 | 6 km SSW of Toston, Montana | Oct 31, 2026, 12:31 AM | 3 km | 26 km NNE |
| M2.4 | 20 km SW of Whitehall, Montana | Oct 25, 2026, 03:27 AM | 2 km | 60 km WSW |
| M1.2 | 18 km E of Townsend, Montana | Oct 22, 2026, 05:13 AM | 13 km | 50 km NNE |
| M1.1 | 6 km SSW of Toston, Montana | Oct 22, 2026, 03:13 AM | 2 km | 26 km NNE |
| M2.3 | 6 km SSW of Toston, Montana | Oct 22, 2026, 03:11 AM | 1 km | 26 km NNE |
| M1.7 | 7 km S of Toston, Montana | Oct 22, 2026, 02:59 AM | 5 km | 25 km NNE |
| M1.0 | 8 km SE of Big Sky, Montana | Oct 21, 2026, 04:23 AM | 13 km | 76 km SSE |
| M2.1 | 15 km ENE of Twin Bridges, Montana | Oct 16, 2026, 09:31 AM | 4 km | 56 km SW |
Earthquakes per year near Three Forks (M3.0 and up, within 100 km)
M3.0–3.9 M4.0+
Each bar is one year; taller means more quakes (M3.0 and up). The dark red part is the bigger ones (M4.0+), counted inside the number above each bar — not added on top. These may be felt, depending on how far away and how deep they are. 2026 is not a full year yet — it only counts up to today. Source: USGS Earthquake Catalog.
What the last year looked like near Three Forks
Every quake of M1.5 or bigger within 100 km over the last year — 31 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 8 biggest earthquakes on record near Three Forks (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M4.4 | 8 km NNW of Alder, Montana | May 08, 2007, 15:46 UTC | 71 km |
| M4.3 | 18 km S of Whitehall, Montana | Oct 28, 1998, 03:11 UTC | 50 km |
| M4.2 | 4 km NW of Manhattan, Montana | Aug 16, 2019, 00:02 UTC | 14 km |
| M4.1 | 3 km NW of Manhattan, Montana | Aug 06, 2019, 04:27 UTC | 15 km |
| M4.1 | 6 km S of Pony, Montana | Jun 18, 2006, 00:05 UTC | 42 km |
| M4.1 | 8 km ENE of Townsend, Montana | Apr 08, 2000, 11:30 UTC | 51 km |
| M4.0 | 16 km S of Whitehall, Montana | Sep 03, 2016, 23:44 UTC | 48 km |
| M4.0 | 11 km NNE of Manhattan, Montana | Jul 14, 2019, 01:52 UTC | 23 km |
Nearby places
Manhattan, MT (17 km) · Belgrade, MT (32 km) · Four Corners, MT (38 km) · Bozeman, MT (46 km) · Townsend, MT (48 km) · Whitehall, MT (42 km)
USGS data fetched Nov 03, 2026, 15:45 UTC · page built Nov 03, 2026, 16:01 UTC. How to read this page: recent-window counts cover M1.5+ events within 100 km; the 10-year layer is based on M3.0+ and the history layer on M4.0+ since 1980. Recording completeness varies by era and region — small quakes from early decades are under-recorded, so “no record” does not prove “never happened”. Depths are relative to sea level and can be slightly negative for shallow events in elevated terrain. Method: data & methodology.