QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Santaquin, UT

No earthquake was likely felt in Santaquin in the 24 hours to 4:00 pm MST (23:00 UTC). The last one was M 2.4, 18 km (11 mi) SE, at 5:34 pm MDT on 28 April 2026, estimated intensity II (weak) in town. Every earthquake near Santaquin

This page: a magnitude 1.7 earthquake was recorded 13 km (8 mi) south-southwest of Santaquin, UT, at 5:14 am MDT on 2 November 2021 (11:14 UTC), 5.2 km deep.

USGS: 6 km SSW of Rocky Ridge, Utah

45 km (28 mi) SSW of Provo, UT

5:14 am MDT, Nov 2, 2021 · · 5.2 km deep · released about 10 lb of TNT

10 km30 km60 km120 km N Utah County 32 kmSanpete County 61 kmWasatch County 78 kmJuab County 82 kmSalt Lake County 88 kmCarbon County 111 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
5:14 am MDT on 2 November 2021 ()
Where
13 km (8 mi) south-southwest of Santaquin, UT · earthquakes near Santaquin
Magnitude
M 1.7 (ml)
Depth
5.2 km below the surface
Felt
no reports yet
Nearest
Utah County, 32 km NNE
Nearest mapped fault
Wasatch fault, 9 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 1837 days ago

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 11 km (7 mi) from the epicentre. In Santaquin, 13 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: Mona, Genola, Nephi, West Mountain, Elk Ridge, Payson.

How big was it?

This earthquake released about 10 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.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× the energy of this one
  4. This earthquake M 1.7 about 10 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 lists 2 earthquakes of M5 or more within 50 km:

  1. 5.0 3 km WSW of Nephi, Utah · 20 km S of this epicentre
  2. 5.0 1 km SSW of Mount Nebo, Utah · 12 km NW 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 39.8753, -111.8562. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Utah County, UT 32 km (20 mi) NNE earthquakes near Utah County
Sanpete County, UT 61 km (38 mi) SSE earthquakes near Sanpete County
Wasatch County, UT 78 km (49 mi) NE earthquakes near Wasatch County
Juab County, UT 82 km (51 mi) WSW earthquakes near Juab County
Salt Lake County, UT 88 km (55 mi) N earthquakes near Salt Lake County
Carbon County, UT 111 km (69 mi) ESE earthquakes near Carbon 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. 1.9 17 km ESE of Rocky Ridge, Utah
  2. 2.4 17 km ESE of Rocky Ridge, Utah
  3. 2.5 8 km SSE of Woodland Hills, Utah
  4. 1.6 21 km NE of Leamington, Utah
  5. 1.8 21 km WNW of Levan, Utah
  6. 2.3 10 km SW of Nephi, Utah
  7. 1.6 10 km SW of Nephi, Utah
  8. 1.6 1 km WSW of Fairview, Utah
  9. 1.9 2 km WSW of Fairview, Utah
  10. 1.6 10 km NE of Fountain Green, Utah
  11. 1.9 17 km NNW of Fairview, Utah
  12. 2.1 17 km E of Leamington, Utah
  13. 1.5 13 km W of Levan, Utah
  14. 1.6 2 km SE of Mount Nebo, Utah
  15. 1.8 8 km SW of Levan, 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.