QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Cedar City, UT

No earthquake was likely felt in Cedar City in the 24 hours to 2:35 am MST (09:35 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 1.5 earthquake was recorded 19 km (12 mi) southeast of Cedar City, UT, at 3:59 pm MDT on 25 August 2024 (21:59 UTC), 12 km deep.

USGS: 18 km SSW of Brian Head, Utah

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

3:59 pm MDT, Aug 25, 2024 · · 12 km deep · released about 6.2 lb of TNT

10 km30 km60 km120 km N Iron County 53 kmWashington County 59 kmBeaver County 95 kmKane County 103 kmPiute County 113 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
3:59 pm MDT on 25 August 2024 ()
Where
19 km (12 mi) southeast of Cedar City, UT · earthquakes near Cedar City
Magnitude
M 1.5 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Iron County, 53 km NW
Nearest mapped fault
Hurricane fault, 17 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 808 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, 19 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 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.5 about 6.2 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 25,000 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

Epicentre 37.5420, -112.9265. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Iron County, UT 53 km (33 mi) NW earthquakes near Iron County
Washington County, UT 59 km (36 mi) WSW earthquakes near Washington County
Beaver County, UT 95 km (59 mi) NNW earthquakes near Beaver County
Kane County, UT 103 km (64 mi) ESE earthquakes near Kane County
Piute County, UT 113 km (70 mi) NE earthquakes near Piute 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. 1.7 9 km E of Springdale, Utah
  2. 1.8 7 km SW of Alton, Utah
  3. 1.9 11 km ENE of Kanarraville, Utah
  4. 2.1 11 km E of Kanarraville, Utah
  5. 2.0 9 km E of Springdale, Utah
  6. 1.6 6 km SSE of Cedar City, Utah
  7. 2.1 14 km W of Cedar City, Utah
  8. 1.6 9 km N of Enoch, Utah
  9. 2.0 1 km WNW of Toquerville, Utah
  10. 2.5 9 km E of Springdale, Utah
  11. 1.6 1 km NW of Toquerville, Utah
  12. 1.6 1 km NW of Toquerville, Utah
  13. 1.6 0 km NNE of Toquerville, Utah
  14. 1.7 1 km NW of Toquerville, Utah
  15. 1.9 9 km E 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.