Earthquake near Cedar City, UT

No earthquake was likely felt in Cedar City in the 24 hours to 7:21 am MST (14:21 UTC). The last one was M 2.2, 16 km (10 mi) N, at 10:46 am MST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Cedar City

This page: a magnitude 3.6 earthquake was recorded 49 km (30 mi) north-northeast of Cedar City, UT, at 2:15 am MDT on 30 October 2018 (08:15 UTC), 12 km deep. 13 people have reported feeling it to USGS.

USGS: 19 km N of Paragonah, Utah

2:15 am MDT, Oct 30, 2018 · 2018-10-30 08:15 UTC · 12 km deep · released about 3.3 tons of TNT

Every earthquake near Cedar 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: 2:15 am MDT on 30 October 2018 (2018-10-30 08:15 UTC)
Where: 49 km (30 mi) north-northeast of Cedar City, UT · earthquakes near Cedar City
Magnitude: M 3.6 (ml)
Depth: 12 km below the surface
Felt: 13 reports · strongest reported intensity IV
Measured shaking: intensity III (ShakeMap)
Nearest: Iron County, 48 km WSW
Nearest mapped fault: Parowan Valley faults, 8 km from its surface trace — near is not the same as on
Status: Reviewed by a seismologist

USGS · last changed by USGS 2018 days ago · we first saw it 2018 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 66 km (41 mi) from the epicentre. In Cedar City, 49 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.

Likely felt in: Beaver 28 km, intensity II · Enoch 38 km, intensity II · Panguitch 41 km, intensity II · Milford 42 km, intensity II · Cedar City 49 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 3.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.6 would have released about 32 times as much.

Northridge, California 1994 M 6.7 51,000× the energy of this one
Mineral, Virginia 2011 M 5.8 2,300× the energy of this one
Magna, Utah 2020 M 5.7 1,600× the energy of this one
This earthquake M 3.6 about 3.3 tons of TNT
Around the size people start to feel M 3.0 this one released 6.9× more

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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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
Iron County, UT	48 km (30 mi)	WSW	earthquakes near Iron County
Beaver County, UT	51 km (31 mi)	NW	earthquakes near Beaver County
Piute County, UT	66 km (41 mi)	ENE	earthquakes near Piute County
Millard County, UT	104 km (64 mi)	NNW	earthquakes near Millard County
Washington County, UT	108 km (67 mi)	SW	earthquakes near Washington County
Sevier County, UT	115 km (71 mi)	NE	earthquakes near Sevier County

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

Aftershocks so far

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

1.8 15 km WNW of Enoch, Utah 21:35 UTC
2.0 15 km WNW of Enoch, Utah 20:43 UTC
1.6 16 km WNW of Enoch, Utah 14:38 UTC
1.8 15 km WNW of Enoch, Utah 08:43 UTC
2.1 16 km WNW of Enoch, Utah 04:00 UTC
1.8 10 km WSW of Circleville, Utah 03:02 UTC
2.4 11 km WSW of Circleville, Utah 21:20 UTC
1.6 7 km WNW of Junction, Utah 05:45 UTC
2.4 18 km WSW of Minersville, Utah 05:30 UTC
2.5 16 km WNW of Enoch, Utah 18:46 UTC
1.7 16 km NNW of Panguitch, Utah 01:10 UTC
2.0 15 km WNW of Enoch, Utah 05:53 UTC
1.6 14 km WNW of Enoch, Utah 15:20 UTC
1.6 16 km WNW of Enoch, Utah 12:42 UTC
1.6 15 km WNW of Enoch, Utah 02:08 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 14:21 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.