Earthquake near Colorado City, AZ

No earthquake was likely felt in Colorado City in the 24 hours to 4:42 pm MST (23:42 UTC). The last one was M 2.1, 14 km (9 mi) NE, at 7:17 pm MST on 12 October 2026, estimated intensity II (weak) in town. Every earthquake near Colorado City

This page: a magnitude 1.8 earthquake was recorded 20 km (13 mi) northeast of Colorado City, AZ, at 9:28 am MST on 20 June 2025 (16:28 UTC), 18 km deep.

USGS: 16 km ESE of Springdale, Utah

66 km (41 mi) E of St. George, UT

9:28 am MST, Jun 20, 2025 · 2025-06-20 16:28 UTC · 18 km deep · released about 16 lb of TNT

Every earthquake near Colorado City Felt it? Tell USGS Check my area

Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.

When: 9:28 am MST on 20 June 2025 (2025-06-20 16:28 UTC)
Where: 20 km (13 mi) northeast of Colorado City, AZ · earthquakes near Colorado City
Magnitude: M 1.8 (ml)
Depth: 18 km below the surface
Felt: no reports yet
Nearest: Washington County, 60 km WNW
Nearest mapped fault: Sevier/Toroweap fault, 13 km from its surface trace — near is not the same as on
Status: Reviewed by a seismologist

USGS · last changed by USGS 507 days ago · we first saw it 507 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Colorado City, 20 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Hildale, Centennial Park, Kanab.

How big was it?

This earthquake released about 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 970,000× the energy of this one
Magna, Utah 2020 M 5.7 680,000× the energy of this one
Around the size people start to feel M 3.0 61× the energy of this one
This earthquake M 1.8 about 16 lb of TNT

Energy from the Gutenberg–Richter relation (log₁₀E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km since 2016 was M 4.5 on 2024-07-29 — about 9,800 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Map loads when it scrolls into view

Nearby places

Place	Distance	Direction from the epicentre
Washington County, UT	60 km (37 mi)	WNW	earthquakes near Washington County
Kane County, UT	91 km (57 mi)	E	earthquakes near Kane County
Iron County, UT	96 km (60 mi)	NNW	earthquakes near Iron County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

39 earthquakes have been recorded within 50 km since this one.

1.6 10 km E of Springdale, Utah 03:44 UTC
1.5 7 km NE of Hildale, Utah 17:33 UTC
1.9 5 km SE of Centennial Park, Arizona 22:11 UTC
2.0 25 km S of Brian Head, Utah 01:28 UTC
2.5 7 km SW of Centennial Park, Arizona 05:17 UTC
1.5 7 km NE of Hildale, Utah 17:35 UTC
2.0 9 km E of Springdale, Utah 19:02 UTC
1.5 10 km NE of Hildale, Utah 15:21 UTC
2.3 10 km NE of Hildale, Utah 06:34 UTC
1.9 11 km NE of Hildale, Utah 01:21 UTC
1.6 11 km NE of Hildale, Utah 08:05 UTC
1.7 7 km SE of Fredonia, Arizona 12:13 UTC
1.6 5 km NE of Hildale, Utah 22:37 UTC
1.8 0 km N of Cane Beds, Arizona 00:26 UTC
1.6 6 km NE of Hildale, Utah 13:21 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 23:42 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

The official USGS event page — the source of record for every value above
Did you feel it? Report it to USGS — reports go to USGS, not to us
ShakeMap for this event, when USGS has produced one

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.