QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Enoch, UT

No earthquake was likely felt in Enoch in the 24 hours to 1:05 am MST (08:05 UTC). The last one was M 2.2, 8 km (5 mi) NW, at 10:46 am MST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Enoch

This page: a magnitude 2.1 earthquake was recorded 16 km (10 mi) west-northwest of Enoch, UT, at 10:00 pm MDT on 2 August 2019 (04:00 UTC), 9.5 km deep.

USGS: 16 km WNW of Enoch, Utah

89 km (55 mi) NNE of St. George, UT

10:00 pm MDT, Aug 2, 2019 · · 9.5 km deep · released about 43 lb of TNT

10 km30 km60 km120 km N Iron County 14 kmBeaver County 60 kmWashington County 67 kmPiute 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
10:00 pm MDT on 2 August 2019 ()
Where
16 km (10 mi) west-northwest of Enoch, UT · earthquakes near Enoch
Magnitude
M 2.1 (ml)
Depth
9.5 km below the surface
Felt
no reports yet
Nearest
Iron County, 14 km NW
Nearest mapped fault
Enoch graben faults, 14 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 2655 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 14 km (9 mi) from the epicentre. In Enoch, 16 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: Cedar City.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 since 1900 lists no earthquake of M5 or more within 50 km.

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 37.8158, -113.1987. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Iron County, UT 14 km (9 mi) NW earthquakes near Iron County
Beaver County, UT 60 km (37 mi) N earthquakes near Beaver County
Washington County, UT 67 km (41 mi) SSW earthquakes near Washington County
Piute County, UT 110 km (68 mi) ENE earthquakes near Piute County

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

Aftershocks so far

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

  1. 2.0 11 km W of Minersville, Utah
  2. 2.9 12 km NW of Summit, Utah
  3. 1.9 10 km NNE of Pine Valley, Utah
  4. 1.6 11 km NNE of Pine Valley, Utah
  5. 2.0 12 km NNE of Pine Valley, Utah
  6. 1.6 12 km NNE of Pine Valley, Utah
  7. 2.7 10 km NNE of Pine Valley, Utah
  8. 1.6 12 km NNE of Pine Valley, Utah
  9. 2.1 Utah
  10. 3.8 11 km N of Pine Valley, Utah
  11. 1.7 7 km NNW of Enoch, Utah
  12. 1.9 12 km SSE of Kanarraville, Utah
  13. 1.8 17 km NNW of Enoch, Utah
  14. 1.5 23 km ESE of Kanarraville, Utah
  15. 1.8 6 km NNW of Enoch, 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.