QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near Millville, UT

No earthquake was likely felt in Millville in the 24 hours to 1:05 am MST (08:05 UTC). The last one was M 2.0, 13 km (8 mi) E, at 6:59 am MDT on 25 June 2026, estimated intensity II (weak) in town. Every earthquake near Millville

This page: a magnitude 2.0 earthquake was recorded 11 km (7 mi) east-southeast of Millville, UT, at 4:36 pm MST on 24 January 2021 (23:36 UTC), 8.3 km deep. 1 person has reported feeling it to USGS.

USGS: 11 km ESE of Millville, Utah

99 km (61 mi) NNE of Salt Lake City, UT · 16 km (10 mi) SE of Logan, UT

4:36 pm MST, Jan 24, 2021 · · 8.3 km deep · released about 26 lb of TNT

10 km30 km60 km120 km N Cache County 11 kmRich County 38 kmWeber County 45 kmFranklin County 59 kmMorgan County 63 kmBear Lake County 77 kmDavis County 80 kmOneida County 91 kmUinta County 103 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
4:36 pm MST on 24 January 2021 ()
Where
11 km (7 mi) east-southeast of Millville, UT · earthquakes near Millville
Magnitude
M 2.0 (ml)
Depth
8.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Cache County, 11 km NNW
Nearest mapped fault
East Cache fault, 10 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 2117 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 13 km (8 mi) from the epicentre. In Millville, 11 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: Nibley, Providence, Hyrum, River Heights, Logan, North Logan.

How big was it?

This earthquake released about 26 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 580,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 410,000× the energy of this one
  3. Around the size people start to feel M 3.0 36× the energy of this one
  4. This earthquake M 2.0 about 26 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 4 earthquakes of M5 or more within 50 km:

  1. 5.8 8 km W of Garden City, Utah · 36 km NNE of this epicentre
  2. 5.5 26 km E of Avon, Utah · 23 km SE of this epicentre
  3. 5.2 16 km ENE of North Logan, Utah · 19 km NNE of this epicentre
  4. 5.0 2 km S of Richmond, Utah · 30 km NNW 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 41.6473, -111.6935. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Cache County, UT 11 km (7 mi) NNW earthquakes near Cache County
Rich County, UT 38 km (23 mi) E earthquakes near Rich County
Weber County, UT 45 km (28 mi) SSW earthquakes near Weber County
Franklin County, ID 59 km (37 mi) N earthquakes near Franklin County
Morgan County, UT 63 km (39 mi) S earthquakes near Morgan County
Bear Lake County, ID 77 km (48 mi) NNE earthquakes near Bear Lake County

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

Aftershocks so far

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

  1. 1.8 7 km SW of Corinne, Utah
  2. 1.9 Utah
  3. 1.7 7 km SW of Corinne, Utah
  4. 2.3 17 km ENE of North Logan, Utah
  5. 1.6 7 km SW of Corinne, Utah
  6. 2.7 Utah
  7. 1.9 5 km E of Huntsville, Utah
  8. 1.9 5 km W of Garland, Utah
  9. 2.1 7 km WSW of Corinne, Utah
  10. 1.6 5 km E of Huntsville, Utah
  11. 2.1 14 km E of Providence, Utah
  12. 1.7 13 km SE of Avon, Utah
  13. 1.6 10 km SE of Avon, Utah
  14. 2.0 4 km NE of Trenton, Utah
  15. 1.6 11 km ESE of North Logan, 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.