United States

Earthquakes in Colorado

USGS recorded 3 earthquakes in and around Colorado in the last 30 days and 112 in the last year, counting everything of magnitude 1.0 and above. The strongest in that year measured M 3.8.

M 1.9 · 26 km WSW of Yampa, Colorado · 2026-09-14 08:59 UTC M 2.0 · 17 km WSW of Phippsburg, Colorado · 2026-09-14 09:06 UTC M 2.0 · 29 km WSW of Yampa, Colorado · 2026-09-14 08:31 UTC

Recent earthquakes in and around Colorado

Last 30 days, newest first as of 2026-09-23 05:14 UTC

Magnitude Location Depth When (UTC)
M 2.0 17 km WSW of Phippsburg, Colorado 5.0 km deep 2026-09-14 09:06 UTC
M 1.9 26 km WSW of Yampa, Colorado 5.0 km deep 2026-09-14 08:59 UTC
M 2.0 29 km WSW of Yampa, Colorado 5.0 km deep 2026-09-14 08:31 UTC

The largest on record in and around Colorado

Since 1900, when the instrumental record becomes usable. The largest is M 5.5 at 15 km E of Colona, Colorado on 1960-10-11: moderate: can damage poorly built structures.

Largest since 1900 USGS

Magnitude Location Date Depth
M 5.5 15 km E of Colona, Colorado 1960-10-11 49.0 km deep
M 5.5 7 km SE of Lochbuie, Colorado 1967-08-09 10.0 km deep
M 5.4 46 km NW of Parachute, Colorado 1973-05-17 0.0 km deep
M 5.3 6 km S of Valdez, Colorado 2011-08-23 4.0 km deep
M 5.2 4 km NE of Derby, Colorado 1967-11-27 5.0 km deep
M 4.7 9 km SSW of Starkville, Colorado 2011-08-22 5.0 km deep
M 4.7 15 km ENE of Ridgway, Colorado 1962-02-05 25.0 km deep
M 4.5 10 km NNW of Rangely, Colorado 1995-03-20 at the surface
M 4.5 0 km SE of Cokedale, Colorado 2001-09-05 5.0 km deep
M 4.5 9 km SSE of Brighton, Colorado 1967-04-27 5.0 km deep

How these numbers were counted

Counts include every earthquake of magnitude 1.0 and above that USGS located in and around Colorado. The search is a latitude and longitude rectangle covering Colorado. No region is a rectangle, so events just outside the border can appear; each row shows the location text USGS published, which names the nearest town. Full method, including why counts from different places are not comparable.

Source: USGS Earthquake Hazards Program (FDSN event service). Retrieved 2026-09-23. Public domain.