16 km SSW of Levan, Utah

2021-10-22 11:29 UTC · 7.1 km deep · released about 1.1 tons of TNT

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: 2021-10-22 11:29 UTC
Magnitude: M 3.2 (ml)
Depth: 7.1 km below the surface
Felt: 8 reports · strongest reported intensity III
Measured shaking: intensity III (ShakeMap)
Nearest: Sanpete County, 34 km ESE
Status: Reviewed by a seismologist

USGS · last changed by USGS 1724 days ago · we first saw it 1724 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 8 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.1 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

Northridge, California 1994 M 6.7 150,000× the energy of this one
Mineral, Virginia 2011 M 5.8 6,900× the energy of this one
Magna, Utah 2020 M 5.7 4,900× the energy of this one
This earthquake M 3.2 about 1.1 tons of TNT
Around the size people start to feel M 3.0 this one released 2.3× 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.

Where

Map loads when it scrolls into view

Epicentre 39.4347, -111.9605. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Sanpete County, UT	34 km (21 mi)	WNW of here	earthquakes near Sanpete County
Sevier County, UT	78 km (48 mi)	N of here	earthquakes near Sevier County
Juab County, UT	78 km (48 mi)	ESE of here	earthquakes near Juab County
Utah County, UT	80 km (50 mi)	SSW of here	earthquakes near Utah County
Millard County, UT	114 km (71 mi)	ENE of here	earthquakes near Millard County
Emery County, UT	117 km (73 mi)	WNW of here	earthquakes near Emery County

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

Aftershocks so far

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

1.5 8 km NNE of Fountain Green, Utah 10:33 UTC
1.8 11 km S of Levan, Utah 01:12 UTC
2.9 11 km WSW of Levan, Utah 10:41 UTC
1.6 11 km ESE of Holden, Utah 06:28 UTC
1.6 5 km WNW of Scipio, Utah 14:17 UTC
1.7 16 km N of Fayette, Utah 09:49 UTC
1.6 16 km N of Fayette, Utah 21:40 UTC
1.9 16 km N of Fayette, Utah 18:40 UTC
1.7 15 km N of Fayette, Utah 16:48 UTC
1.7 9 km NNW of Fayette, Utah 23:52 UTC
1.6 4 km WNW of Centerfield, Utah 18:35 UTC
1.7 7 km NNE of Moroni, Utah 18:58 UTC
2.1 8 km NNW of Fayette, Utah 07:49 UTC
1.7 8 km ENE of Ephraim, Utah 09:10 UTC
2.9 6 km W of Gunnison, Utah 23:25 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 05:29 UTC. 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.