QuakeIndex

Earthquake · reviewed by a seismologist

M 4.2ml

Earthquake near Enterprise, UT

No earthquake was likely felt in Enterprise in the 24 hours to 3:07 am MST (10:07 UTC). The last one was M 1.9, 14 km (9 mi) SSW, at 1:11 am MDT on 29 March 2026, estimated intensity II (weak) in town. Every earthquake near Enterprise

This page: a magnitude 4.2 earthquake was recorded 19 km (12 mi) west-southwest of Enterprise, UT, at 3:37 pm MST on 15 January 2016 (22:37 UTC), 1.0 km deep. 10 people have reported feeling it to USGS.

USGS: 19 km WSW of Enterprise, Utah

57 km (36 mi) NNW of St. George, UT

3:37 pm MST, Jan 15, 2016 · · 1.0 km deep · released about 35 tons of TNT

Every earthquake near Enterprise Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 47 kmIron County 70 kmLincoln County 84 kmBeaver 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
3:37 pm MST on 15 January 2016 ()
Where
19 km (12 mi) west-southwest of Enterprise, UT · earthquakes near Enterprise
Magnitude
M 4.2 (ml)
Depth
1.0 km below the surface
Felt
10 reports · strongest reported intensity III
Measured shaking
intensity V (ShakeMap)
USGS impact alert
green
Nearest
Washington County, 47 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2018 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

At this magnitude and depth, people at rest would likely notice it out to about 116 km (72 mi) from the epicentre. In Enterprise, 19 km away, the estimate is intensity IV (light). 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: Enterprise 19 km, intensity IV. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 35 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 4,900× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 220× the energy of this one
  3. Magna, Utah 2020 M 5.7 150× the energy of this one
  4. This earthquake M 4.2 about 35 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 72× 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.

For this area

The largest earthquake within 50 km (31 mi) since our catalogue begins in 2016. No other earthquake of M4 or more has been recorded this close in that time.

Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:

  1. 6.3 Near Pine Valley, Utah · 39 km ESE of this epicentre
  2. 5.9 38 km ESE of Caliente, Nevada · 22 km WSW of this epicentre
  3. 5.3 36 km SE of Caliente, Nevada · 28 km WSW of this epicentre
  4. 5.2 36 km SE of Caliente, Nevada · 28 km WSW 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 37.5122, -113.9217. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Washington County, UT 47 km (29 mi) SE earthquakes near Washington County
Iron County, UT 70 km (43 mi) NE earthquakes near Iron County
Lincoln County, NV 84 km (52 mi) W earthquakes near Lincoln County
Beaver County, UT 111 km (69 mi) NNE earthquakes near Beaver County

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

Aftershocks so far

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

  1. 2.9 18 km SSE of Caliente, Nevada
  2. 1.6 33 km W of Veyo, Utah
  3. 1.8 10 km WNW of Central, Utah
  4. 1.6 11 km SSW of Enterprise, Utah
  5. 1.7 10 km NW of Central, Utah
  6. 1.5 15 km WNW of Veyo, Utah
  7. 1.5 34 km SSE of Caliente, Nevada
  8. 1.5 5 km SE of Enterprise, Utah
  9. 1.8 10 km ESE of Enterprise, Utah
  10. 1.8 7 km SE of Enterprise, Utah
  11. 1.8 4 km SE of Enterprise, Utah
  12. 2.6 0 km NNE of Enterprise, Utah
  13. 1.8 6 km SE of Enterprise, Utah
  14. 1.6 32 km WNW of Veyo, Utah
  15. 1.9 7 km ESE of Enterprise, 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.