QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Richfield, UT

No earthquake was likely felt in Richfield in the 24 hours to 4:24 pm MST (23:24 UTC). The last one was M 3.2, 34 km (21 mi) W, at 8:35 am MDT on 22 April 2026, estimated intensity II (weak) in town; 6 felt reports to USGS. Every earthquake near Richfield

This page: a magnitude 1.6 earthquake was recorded 10 km (6 mi) west of Richfield, UT, at 5:56 am MDT on 2 April 2025 (11:56 UTC), less than 1 km deep.

USGS: 9 km W of Richfield, Utah

5:56 am MDT, Apr 2, 2025 · · -2.1 km deep · released about 8.7 lb of TNT

10 km30 km60 km120 km N Sevier County 34 kmPiute County 50 kmMillard County 83 kmSanpete County 84 kmBeaver County 102 kmJuab County 115 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
5:56 am MDT on 2 April 2025 ()
Where
10 km (6 mi) west of Richfield, UT · earthquakes near Richfield
Magnitude
M 1.6 (ml)
Depth
-2.1 km below the surface
Felt
no reports yet
Nearest
Sevier County, 34 km E
Nearest mapped fault
Annabella graben faults, 17 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 589 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 12 km (7 mi) from the epicentre. In Richfield, 10 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.

Likely felt in: Richfield 10 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 8.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.7 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

The largest earthquake within 50 km since 2016 was M 4.0 on 2019-02-20 — about 4,000 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 6.6 Near Marysvale, Utah · 36 km SSW of this epicentre
  2. 5.2 0 km SSW of Central Valley, Utah · 13 km SE of this epicentre
  3. 5.0 10 km NE of Marysvale, Utah · 31 km S 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 38.7863, -112.1973. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sevier County, UT 34 km (21 mi) E earthquakes near Sevier County
Piute County, UT 50 km (31 mi) S earthquakes near Piute County
Millard County, UT 83 km (52 mi) WNW earthquakes near Millard County
Sanpete County, UT 84 km (52 mi) NE earthquakes near Sanpete County
Beaver County, UT 102 km (64 mi) WSW earthquakes near Beaver County
Juab County, UT 115 km (72 mi) NNW earthquakes near Juab County

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

Aftershocks so far

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

  1. 3.6 8 km SSW of Kanosh, Utah
  2. 1.8 7 km SSW of Kanosh, Utah
  3. 2.1 8 km SSW of Kanosh, Utah
  4. 1.6 12 km SSW of Kanosh, Utah
  5. 2.4 11 km SSW of Kanosh, Utah
  6. 2.3 9 km SSW of Kanosh, Utah
  7. 1.6 9 km SSW of Kanosh, Utah
  8. 2.0 9 km SSW of Kanosh, Utah
  9. 1.6 8 km SSW of Kanosh, Utah
  10. 3.3 8 km SSW of Kanosh, Utah
  11. 2.1 9 km SSW of Kanosh, Utah
  12. 1.9 9 km SSW of Kanosh, Utah
  13. 1.8 9 km SSW of Kanosh, Utah
  14. 1.5 8 km SSW of Kanosh, Utah
  15. 2.2 9 km SSW of Kanosh, 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.