QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Cedar City, UT

No earthquake was likely felt in Cedar City in the 24 hours to 11:12 pm MST (06:12 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 1.8 earthquake was recorded 11 km (7 mi) west of Cedar City, UT, at 10:13 pm MST on 28 February 2022 (05:13 UTC), 10 km deep.

USGS: 10 km W of Cedar City, Utah

77 km (48 mi) NNE of St. George, UT

10:13 pm MST, Feb 28, 2022 · · 10 km deep · released about 14 lb of TNT

Every earthquake near Cedar City Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Iron County 26 kmWashington County 55 kmBeaver County 74 kmPiute County 116 km
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
10:13 pm MST on 28 February 2022 ()
Where
11 km (7 mi) west of Cedar City, UT · earthquakes near Cedar City
Magnitude
M 1.8 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Iron County, 26 km NNW
Nearest mapped fault
Cedar City-Parowan monocline (and faults), 12 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1718 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 9 km (6 mi) from the epicentre. In Cedar City, 11 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: Enoch.

How big was it?

This earthquake released about 14 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.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× the energy of this one
  4. This earthquake M 1.8 about 14 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

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

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 6.3 Near Pine Valley, Utah · 43 km SW of this epicentre

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

Epicentre 37.6948, -113.1805. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Iron County, UT 26 km (16 mi) NNW earthquakes near Iron County
Washington County, UT 55 km (34 mi) SSW earthquakes near Washington County
Beaver County, UT 74 km (46 mi) N earthquakes near Beaver County
Piute County, UT 116 km (72 mi) NE earthquakes near Piute County

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

Aftershocks so far

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

  1. 1.7 19 km E of Brian Head, Utah
  2. 1.8 Utah
  3. 1.9 15 km NNW of Paragonah, Utah
  4. 1.9 3 km ENE of Enoch, Utah
  5. 1.7 13 km SSE of Kanarraville, Utah
  6. 1.6 16 km ESE of Newcastle, Utah
  7. 2.1 19 km ENE of Brian Head, Utah
  8. 1.7 10 km E of Kanarraville, Utah
  9. 1.6 13 km SSE of Kanarraville, Utah
  10. 2.4 13 km SSE of Kanarraville, Utah
  11. 1.8 13 km SSE of Kanarraville, Utah
  12. 1.6 12 km SSE of Kanarraville, Utah
  13. 1.6 13 km SSE of Kanarraville, Utah
  14. 2.3 13 km SSE of Kanarraville, Utah
  15. 2.1 13 km SSE of Kanarraville, Utah

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

On USGS

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