QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

Earthquake near Beaver, UT

No earthquake was likely felt in Beaver in the 24 hours to 12:53 am MST (07:53 UTC). The last one was M 3.1, 31 km (20 mi) NW, at 11:10 am MST on 7 November 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Beaver

This page: a magnitude 2.9 earthquake was recorded 16 km (10 mi) northwest of Beaver, UT, at 1:45 pm MST on 29 November 2021 (20:45 UTC), 4.5 km deep. 2 people have reported feeling it to USGS.

USGS: 15 km NW of Beaver, Utah

1:45 pm MST, Nov 29, 2021 · · 4.5 km deep · released about 570 lb of TNT

10 km30 km60 km120 km N Beaver County 41 kmPiute County 56 kmIron County 70 kmMillard County 72 kmSevier County 93 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
1:45 pm MST on 29 November 2021 ()
Where
16 km (10 mi) northwest of Beaver, UT · earthquakes near Beaver
Magnitude
M 2.9 (ml)
Depth
4.5 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Beaver County, 41 km W
Nearest mapped fault
Beaver Basin faults, 2 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 1740 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 29 km (18 mi) from the epicentre. In Beaver, 16 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 16 km, intensity II · Milford 21 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 570 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 27,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 19,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.7× the energy of this one
  4. This earthquake M 2.9 about 570 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 4.4 on 2020-10-03 — about 230 times the energy of this one.

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

  1. 6.6 Near Marysvale, Utah · 35 km ENE 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 38.3733, -112.7740. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Beaver County, UT 41 km (25 mi) W earthquakes near Beaver County
Piute County, UT 56 km (35 mi) E earthquakes near Piute County
Iron County, UT 70 km (43 mi) SW earthquakes near Iron County
Millard County, UT 72 km (45 mi) NNW earthquakes near Millard County
Sevier County, UT 93 km (58 mi) ENE earthquakes near Sevier County
Garfield County, UT 130 km (81 mi) ESE earthquakes near Garfield County

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

Aftershocks so far

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

  1. 1.7 21 km SSW of Kanosh, Utah
  2. 1.9 7 km S of Kanosh, Utah
  3. 1.9 19 km SSE of Beaver, Utah
  4. 2.1 11 km SSE of Beaver, Utah
  5. 2.2 11 km SSE of Beaver, Utah
  6. 1.6 7 km WNW of Junction, Utah
  7. 1.9 18 km SSE of Beaver, Utah
  8. 1.8 6 km ESE of Beaver, Utah
  9. 2.0 20 km W of Marysvale, Utah
  10. 2.0 16 km SE of Minersville, Utah
  11. 2.5 3 km W of Junction, Utah
  12. 1.9 8 km SE of Beaver, Utah
  13. 1.5 7 km SE of Beaver, Utah
  14. 1.8 27 km NE of Milford, Utah
  15. 1.6 22 km NE of Paragonah, 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.