Earthquake · reviewed by a seismologist
M 1.7md
Earthquake near Mount Pleasant, UT
No earthquake was likely felt in Mount Pleasant in the 24 hours to 9:48 am MST (16:48 UTC). The last one was M 2.3, 5 km (3 mi) ENE, at 5:07 pm MDT on 12 August 2026, estimated intensity III (weak) in town. Every earthquake near Mount Pleasant
This page: a magnitude 1.7 earthquake was recorded 18 km (11 mi) northeast of Mount Pleasant, UT, at 9:22 am MST on 10 March 2021 (16:22 UTC), less than 1 km deep.
USGS: 11 km W of Clear Creek, Utah
- When
- 9:22 am MST on 10 March 2021 ()
- Where
- 18 km (11 mi) northeast of Mount Pleasant, UT · earthquakes near Mount Pleasant
- Magnitude
- M 1.7 (md)
- Depth
- -3.4 km below the surface
- Felt
- no reports yet
- Nearest
- Sanpete County, 40 km SW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2074 days ago
Earthquake alerts for Mount Pleasant, UT
Get a notification in this browser when USGS records an earthquake near Mount Pleasant, 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 minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 12 km (7 mi) from the epicentre. In Mount Pleasant, 18 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: Fairview, Spring City, Moroni, Fountain Green.
How big was it?
This earthquake released about 9.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
- Around the size people start to feel M 3.0 99× the energy of this one
- This earthquake M 1.7 about 9.6 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 39.6508, -111.2870. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Sanpete County, UT | 40 km (25 mi) | SW | earthquakes near Sanpete County |
| Carbon County, UT | 60 km (37 mi) | E | earthquakes near Carbon County |
| Utah County, UT | 62 km (38 mi) | NNW | earthquakes near Utah County |
| Wasatch County, UT | 77 km (48 mi) | N | earthquakes near Wasatch County |
| Emery County, UT | 86 km (54 mi) | SE | earthquakes near Emery County |
| Duchesne County, UT | 102 km (63 mi) | NE | earthquakes near Duchesne County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
51 earthquakes have been recorded within 50 km since this one.
- 1.7 8 km NW of Helper, Utah
- 1.6 3 km N of Kenilworth, Utah
- 1.5 28 km ESE of Mapleton, Utah
- 2.4 28 km ESE of Mapleton, Utah
- 1.7 28 km ESE of Mapleton, Utah
- 1.6 10 km ESE of Fairview, Utah
- 1.7 7 km NNE of Moroni, Utah
- 1.7 8 km ENE of Ephraim, Utah
- 1.5 20 km SE of Mount Pleasant, Utah
- 1.6 4 km NNW of Kenilworth, Utah
- 1.7 8 km NNW of Helper, Utah
- 1.6 11 km W of Clear Creek, Utah
- 1.9 3 km NNE of Mount Pleasant, Utah
- 1.8 Utah
- 1.8 3 km N of Mount Pleasant, 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.