QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Cedar City, UT

No earthquake was likely felt in Cedar City in the 24 hours to 4:45 am MST (11:45 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 1.6 earthquake was recorded 23 km (14 mi) east of Cedar City, UT, at 11:10 am MDT on 7 October 2023 (17:10 UTC), 12 km deep.

USGS: Utah

97 km (60 mi) NE of St. George, UT

11:10 am MDT, Oct 7, 2023 · · 12 km deep · released about 6.6 lb of TNT

Every earthquake near Cedar City Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Iron County 51 kmWashington County 77 kmBeaver County 83 kmPiute County 92 kmKane County 99 kmGarfield County 120 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
11:10 am MDT on 7 October 2023 ()
Where
23 km (14 mi) east of Cedar City, UT · earthquakes near Cedar City
Magnitude
M 1.6 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Iron County, 51 km WNW
Nearest mapped fault
Cedar City-Parowan monocline (and faults), 15 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 1131 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 Cedar City, 23 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: Parowan, Enoch.

How big was it?

This earthquake released about 6.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 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

Epicentre 37.6948, -112.7997. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Iron County, UT 51 km (31 mi) WNW earthquakes near Iron County
Washington County, UT 77 km (48 mi) SW earthquakes near Washington County
Beaver County, UT 83 km (52 mi) NNW earthquakes near Beaver County
Piute County, UT 92 km (57 mi) NE earthquakes near Piute County
Kane County, UT 99 km (61 mi) ESE earthquakes near Kane County
Garfield County, UT 120 km (74 mi) E earthquakes near Garfield County

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

Aftershocks so far

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

  1. 2.7 1 km WSW of Summit, Utah
  2. 2.3 4 km WNW of Panguitch, Utah
  3. 1.8 12 km ENE of Kanarraville, Utah
  4. 2.7 0 km N of Summit, Utah
  5. 1.8 12 km SSE of Kanarraville, Utah
  6. 2.1 12 km SSE of Kanarraville, Utah
  7. 1.9 12 km SSE of Kanarraville, Utah
  8. 1.8 2 km ENE of Summit, Utah
  9. 1.6 21 km S of Brian Head, Utah
  10. 1.8 2 km ENE of Summit, Utah
  11. 2.0 7 km WNW of Enoch, Utah
  12. 2.7 3 km NE of Summit, Utah
  13. 1.7 16 km NW of Cedar City, Utah
  14. 1.7 8 km SSW of Cedar City, Utah
  15. 1.8 22 km N of Springdale, 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.