Earthquake · reviewed by a seismologist
M 3.3ml
Earthquake near Beaver, UT
No earthquake was likely felt in Beaver in the 24 hours to 10:18 pm MST (05:18 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 3.3 earthquake was recorded 6 km (4 mi) southwest of Beaver, UT, at 1:07 am MDT on 24 October 2021 (07:07 UTC), 7.1 km deep. 7 people have reported feeling it to USGS.
USGS: 6.6km SW of Beaver, Utah
- When
- 1:07 am MDT on 24 October 2021 ()
- Where
- 6 km (4 mi) southwest of Beaver, UT · earthquakes near Beaver
- Magnitude
- M 3.3 (ml)
- Depth
- 7.1 km below the surface
- Felt
- 7 reports · strongest reported intensity III
- Measured shaking
- intensity III (ShakeMap)
- Nearest
- Piute County, 50 km ENE
- Nearest mapped fault
- Beaver Basin faults, 3 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 1769 days ago
Earthquake alerts for Beaver, UT
Get a notification in this browser when USGS records an earthquake near Beaver, UT. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 51 km (32 mi) from the epicentre. In Beaver, 6 km away, the estimate is intensity III (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 6 km, intensity III · Milford 34 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 130,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 5,800× the energy of this one
- Magna, Utah 2020 M 5.7 4,100× the energy of this one
- This earthquake M 3.3 about 1.3 tons of TNT
- Around the size people start to feel M 3.0 this one released 2.7× 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
The largest earthquake within 50 km since 2016 was M 4.4 on 2020-10-03 — about 50 times the energy of this one.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 6.6 Near Marysvale, Utah · 39 km NE 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 38.2347, -112.6867. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Piute County, UT | 50 km (31 mi) | ENE | earthquakes near Piute County |
| Beaver County, UT | 50 km (31 mi) | WNW | earthquakes near Beaver County |
| Iron County, UT | 65 km (41 mi) | WSW | earthquakes near Iron County |
| Millard County, UT | 89 km (55 mi) | NNW | earthquakes near Millard County |
| Sevier County, UT | 95 km (59 mi) | NE | earthquakes near Sevier County |
| Garfield County, UT | 117 km (73 mi) | ESE | earthquakes near Garfield County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
43 earthquakes have been recorded within 50 km since this one.
- 1.6 9 km SW of Milford, Utah
- 1.7 9 km SW of Milford, Utah
- 1.9 9 km WSW of Milford, Utah
- 1.7 9 km SW of Milford, Utah
- 2.0 9 km SW of Milford, Utah
- 1.8 Utah
- 1.8 8 km SW of Milford, Utah
- 2.6 22 km NNW of Panguitch, Utah
- 1.8 23 km NNW of Panguitch, Utah
- 3.0 22 km NNW of Panguitch, Utah
- 2.4 6 km NE of Beaver, Utah
- 1.5 8 km WNW of Parowan, Utah
- 2.0 6 km SW of Beaver, Utah
- 1.7 20 km W of Marysvale, Utah
- 1.8 22 km W of Marysvale, 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
- 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.