QuakeIndex

Earthquakes in Colorado

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The most recent earthquake of M2.5 or more in Colorado was M 3.4, 8 km SSE of Stonewall Gap, Colorado, at 3:34 am MST on 8 November 2026, 5 km deep. 2 people reported feeling it to USGS.

No earthquake of M1.5 or more was recorded in Colorado in the last 24 hours.

Last 24 hours
0
Last 7 days
1
Last 30 days
6 · an average 30 days here since 2016: 8.7
Last 12 months
128 · largest M 4.1 on 7 May 2026
Since 2016
1,147 earthquakes of M1.5 or more
Largest since 2016
M 4.5 on 4 March 2019, 29 km E of La Sal, Utah

Latest quake, 24 hours and 7 days: the QuakeIndex database, which reads USGS every 30 seconds, read at ; 30 days and 12 months: the QuakeIndex catalogue, counted to · earthquakes of M1.5 or more in Colorado, where USGS names the state in the location

91

Elevated QuakeIndex 91 / 100

1 quake of M1.5 or larger in the last 7 days in Colorado. Normal for here is 1 to 3 in a week.

Compared against Colorado's own 10 years · USGS catalogue · updated

If you felt one

QuakeIndex does not issue warnings or forecasts. For earthquake early warning see ShakeAlert and the MyShake app.

The last 30 days

Oct 14 Oct 29 Nov 12
Each mark is a day's largest quake within range; its size is the magnitude. The shaded band is the magnitude a day's largest quake normally falls in here (M1.7–M2.5), from this place's own 10-year record. A mark above the band is a bigger day than usual.

Show these earthquakes on your own site: a free card with this strip and the latest quakes in Colorado, for a local news site, school or neighborhood page.

Live · last 7 days

Latest earthquakes in Colorado

None in Colorado in the latest snapshot we hold; the full 7 days load from USGS as this page opens.

Source USGS · snapshot of

The last 7 days on the map

The map loads when it scrolls into view.
Every earthquake in Colorado in the last 7 days, from the USGS feed. Colour and size are magnitude; tap one for its page.

Open the full map — zoom anywhere, or find your own location →

Largest on record in and around Colorado

MagnitudeWhenWhere
M 4.5 29 km E of La Sal, Utah
M 4.3 28 km E of La Sal, Utah
M 4.3 6 km NNE of Segundo, Colorado
M 4.2 27 km N of Cimarron, New Mexico
M 4.1 18 km SSW of Weston, Colorado
M 4.1 Colorado
M 4.1 43 km NW of Parachute, Colorado
M 4.0 25 km N of Cimarron, New Mexico

From the QuakeIndex catalogue, built from the USGS FDSN event service · inside a rectangle drawn around Colorado, which takes in some ground over its borders.

Before 2016: the largest in Colorado since 1900

The USGS record from 1900 to 2015 lists 5 earthquakes of M5 or more in and just off Colorado:

  1. 5.5 15 km E of Colona, Colorado
  2. 5.5 7 km SE of Lochbuie, Colorado
  3. 5.4 46 km NW of Parachute, Colorado
  4. 5.2 4 km NE of Derby, Colorado
  5. 5.1 4 km NNW of Lumberton, New Mexico

USGS ComCat, M5+ from 1900 to 2015, each epicentre counted for the state whose nearest county it is. Epicentres of early earthquakes are estimates. This is the record, not a forecast.

The most active counties in Colorado

CountyM1.5+ in 10 yearsThis week
Costilla County 257 Unusual (99)

Counted within each county page's own radius from the QuakeIndex catalogue (USGS, M1.5+, ten years).

Towns in Colorado with the most earthquakes named after them

Trinidad 118 M2.5+ named after it · Glenwood Springs 8 M2.5+ named after it · Rangely 8 M2.5+ named after it · Walsenburg 6 M2.5+ named after it · Telluride 6 M2.5+ named after it · Steamboat Springs 6 M2.5+ named after it · New Castle 6 M2.5+ named after it · Alamosa 5 M2.5+ named after it · Carbondale 4 M2.5+ named after it

Each town page lists every M1.5+ earthquake within 30 km since 2016 and the ones USGS named after it. Town names: GeoNames (CC BY 4.0).

Counties in Colorado

Be ready

Earthquakes cannot be predicted, here or anywhere, so the useful step is the one taken beforehand. The advice below is from the agencies responsible for it.