QuakeIndex

Earthquake · reviewed by a seismologist

M 3.8ml

Earthquake near Enterprise, UT

No earthquake was likely felt in Enterprise in the 24 hours to 2:40 am MST (09:40 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 3.8 earthquake was recorded 14 km (9 mi) southwest of Enterprise, UT, at 3:00 pm MST on 16 January 2019 (22:00 UTC), 8.9 km deep. 220 people have reported feeling it to USGS.

USGS: 14 km SW of Enterprise, Utah

52 km (33 mi) NNW of St. George, UT

3:00 pm MST, Jan 16, 2019 · · 8.9 km deep · released about 8.1 tons of TNT

Every earthquake near Enterprise Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Washington County 41 kmIron County 66 kmLincoln County 91 kmBeaver County 110 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
3:00 pm MST on 16 January 2019 ()
Where
14 km (9 mi) southwest of Enterprise, UT · earthquakes near Enterprise
Magnitude
M 3.8 (ml)
Depth
8.9 km below the surface
Felt
220 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Washington County, 41 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2017 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 83 km (52 mi) from the epicentre. In Enterprise, 14 km away, the estimate is intensity III (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: Enterprise 14 km, intensity III · Saint George 49 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 8.1 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.8 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 21,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 930× the energy of this one
  3. Magna, Utah 2020 M 5.7 660× the energy of this one
  4. This earthquake M 3.8 about 8.1 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 17× 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 since 2016 was M 4.2 on 2016-01-15 — about 4.3 times the energy of this one.

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

  1. 6.3 Near Pine Valley, Utah · 33 km ESE of this epicentre
  2. 5.9 38 km ESE of Caliente, Nevada · 27 km WSW of this epicentre
  3. 5.3 36 km SE of Caliente, Nevada · 33 km WSW of this epicentre
  4. 5.2 36 km SE of Caliente, Nevada · 33 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 37.4947, -113.8492. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Washington County, UT 41 km (26 mi) SE earthquakes near Washington County
Iron County, UT 66 km (41 mi) NE earthquakes near Iron County
Lincoln County, NV 91 km (56 mi) W earthquakes near Lincoln County
Beaver County, UT 110 km (68 mi) NNE earthquakes near Beaver County

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

Aftershocks so far

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

  1. 1.6 11 km WNW of Veyo, Utah
  2. 1.8 14 km WSW of Enterprise, Utah
  3. 1.7 19 km N of Beryl Junction, Utah
  4. 2.4 4 km SW of Beryl Junction, Utah
  5. 1.6 10 km NNW of New Harmony, Utah
  6. 2.0 14 km SW of Enterprise, Utah
  7. 2.1 12 km SW of Enterprise, Utah
  8. 1.7 16 km WNW of Veyo, Utah
  9. 1.6 16 km SW of Enterprise, Utah
  10. 2.7 13 km SW of Enterprise, Utah
  11. 2.4 12 km SW of Enterprise, Utah
  12. 1.5 15 km SW of Enterprise, Utah
  13. 1.9 14 km SW of Enterprise, Utah
  14. 1.8 11 km SW of Enterprise, Utah
  15. 2.4 13 km WSW 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.