The map shows quakes of M1.5 and up from the last 90 days, the 1 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, 3 earthquakes of M1.5 or bigger were recorded within 100 km of Rock Springs, the biggest of them M3.2. Over the past year, M3.0+ quakes near Rock Springs came at 9.5× the usual pace — busier than normal for this area. The biggest quake on record near Rock Springs — records go back to 1980 — was the M4.2 of Jan 30, 2000, 14:46 UTC: 8 km ESE of Little America, Wyoming.
How we figure this: 19 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 2.0 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 Rock Springs
| Mag | Location | Local time | Depth | Distance |
|---|---|---|---|---|
| M3.0 | 2 km NNW of Little America, Wyoming | Oct 30, 2026, 01:32 AM | -3 km | 56 km W |
| M3.2 | 3 km NW of Little America, Wyoming | Oct 22, 2026, 03:44 AM | -2 km | 57 km W |
| M2.8 | 10 km N of Little America, Wyoming | Oct 11, 2026, 05:34 PM | -2 km | 54 km W |
| M2.8 | 2 km NNW of Little America, Wyoming | Oct 01, 2026, 06:26 AM | -3 km | 56 km W |
| M3.1 | 3 km NW of Little America, Wyoming | Sep 24, 2026, 11:41 PM | -3 km | 57 km W |
| M3.4 | 3 km NNW of Little America, Wyoming | Sep 14, 2026, 10:33 PM | -3 km | 56 km W |
| M3.8 | 22 km NE of Granger, Wyoming | Sep 11, 2026, 11:25 PM | 4 km | 53 km WNW |
| M3.0 | 2 km NNW of Little America, Wyoming | Sep 02, 2026, 10:32 PM | -2 km | 56 km W |
| M3.0 | 3 km NW of Little America, Wyoming | Aug 28, 2026, 03:27 AM | -2 km | 57 km W |
| M3.1 | 2 km NNW of Little America, Wyoming | Aug 21, 2026, 01:09 AM | -3 km | 56 km W |
Earthquakes per year near Rock Springs (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 Rock Springs
Every quake of M1.5 or bigger within 100 km over the last year — 25 in total. A quake of exactly M2.0 counts in the M2.0–3.0 group.
The 1 biggest earthquakes on record near Rock Springs (M4.0 and up, since 1980)
| Mag | Location | Date (UTC) | Distance |
|---|---|---|---|
| M4.2 | 8 km ESE of Little America, Wyoming | Jan 30, 2000, 14:46 UTC | 48 km |
Nearby places
Green River, WY (23 km) · Manila, UT (80 km) · Lyman, WY (95 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.