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, 7 earthquakes of M1.5 or bigger were recorded within 100 km of Dillon, the biggest of them M2.4. Over the past year, M3.0+ quakes near Dillon came at 0.7× the usual pace — quieter than normal for this area. The biggest quake on record near Dillon — records go back to 1980 — was the M5.6 of Jul 26, 2005, 04:08 UTC: 16 km N of Dillon, Montana.
How we figure this: 3 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 4.5 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 Dillon
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M0.8 | 26 km W of Hebgen Lake Estates, Montana | Nov 02, 2026, 12:33 PM | 11 km | 99 km ESE |
| M0.4 | 53 km NNE of Spencer, Idaho | Nov 02, 2026, 12:31 PM | 5 km | 76 km SE |
| M-0.0 | 25 km WNW of Hebgen Lake Estates, Montana | Nov 01, 2026, 05:51 PM | 12 km | 99 km ESE |
| M1.4 | 50 km S of Virginia City, Montana | Nov 01, 2026, 04:19 PM | 1 km | 69 km SE |
| M1.0 | 21 km N of Twin Bridges, Montana | Nov 01, 2026, 07:42 AM | 3 km | 63 km NNE |
| M-0.1 | 27 km W of Hebgen Lake Estates, Montana | Oct 31, 2026, 07:12 PM | 14 km | 97 km ESE |
| M1.0 | 11 km WSW of Sheridan, Montana | Oct 31, 2026, 05:49 PM | 1 km | 33 km NE |
| M0.4 | 50 km NNE of Spencer, Idaho | Oct 31, 2026, 12:34 PM | 10 km | 76 km SE |
| M0.1 | 25 km WNW of Hebgen Lake Estates, Montana | Oct 31, 2026, 07:09 AM | 8 km | 99 km ESE |
| M0.1 | 27 km WNW of Hebgen Lake Estates, Montana | Oct 30, 2026, 08:53 AM | 8 km | 97 km ESE |
Earthquakes per year near Dillon (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 Dillon
Every quake of M1.5 or bigger within 100 km over the last year — 56 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 8 biggest earthquakes on record near Dillon (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M5.6 | 16 km N of Dillon, Montana | Jul 26, 2005, 04:08 UTC | 17 km |
| M5.1 | 22 km NW of Lima, Montana | Aug 20, 1999, 13:50 UTC | 49 km |
| M4.6 | 9 km NE of Lima, Montana | Apr 09, 2019, 18:08 UTC | 59 km |
| M4.6 | 44 km W of Hebgen Lake Estates, Montana | Oct 26, 1982, 08:26 UTC | 87 km |
| M4.5 | 21 km N of Leadore, Idaho | Oct 31, 2005, 00:23 UTC | 71 km |
| M4.4 | 28 km NNE of Spencer, Idaho | Apr 05, 2011, 07:05 UTC | 80 km |
| M4.4 | 8 km NNW of Alder, Montana | May 08, 2007, 15:46 UTC | 44 km |
| M4.4 | 44 km NE of Spencer, Idaho | Feb 05, 2006, 03:25 UTC | 84 km |
Nearby places
Virginia City, MT (55 km) · Whitehall, MT (84 km) · Butte, MT (88 km)
USGS data fetched Nov 03, 2026, 16:45 UTC · page built Nov 03, 2026, 16:45 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.