QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Tooele, UT

No earthquake was likely felt in Tooele in the 24 hours to 11:24 am MST (18:24 UTC). The last one was M 2.3, 11 km (7 mi) E, at 10:08 am MDT on 10 September 2026, estimated intensity II (weak) in town; 4 felt reports to USGS. Every earthquake near Tooele

This page: a magnitude 1.9 earthquake was recorded 11 km (7 mi) east-southeast of Tooele, UT, at 2:31 am MST on 26 November 2023 (09:31 UTC), 2.4 km deep.

USGS: 7 km SSW of Bingham Canyon, Utah

18 km (11 mi) SW of West Jordan, UT · 13 km (8 mi) W of Herriman, UT

2:31 am MST, Nov 26, 2023 · · 2.4 km deep · released about 21 lb of TNT

10 km30 km60 km120 km N Salt Lake County 28 kmDavis County 59 kmUtah County 60 kmTooele County 80 kmMorgan County 82 kmWasatch County 88 kmWeber County 89 kmJuab County 102 kmSummit 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
2:31 am MST on 26 November 2023 ()
Where
11 km (7 mi) east-southeast of Tooele, UT · earthquakes near Tooele
Magnitude
M 1.9 (ml)
Depth
2.4 km below the surface
Felt
no reports yet
Nearest
Salt Lake County, 28 km NE
Nearest mapped fault
Oquirrh fault, 5 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 1030 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 Tooele, 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.

Likely felt in: Tooele 11 km, intensity II · Herriman 12 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 730,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 520,000× the energy of this one
  3. Around the size people start to feel M 3.0 46× the energy of this one
  4. This earthquake M 1.9 about 21 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 5.7 on 2020-03-18 — about 520,000 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.3 Near Salt Lake City, Utah · 38 km NE of this epicentre
  2. 5.0 1 km NE of Magna, Utah · 25 km NNE 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 40.5037, -112.1742. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Salt Lake County, UT 28 km (17 mi) NE earthquakes near Salt Lake County
Davis County, UT 59 km (37 mi) N earthquakes near Davis County
Utah County, UT 60 km (38 mi) SE earthquakes near Utah County
Tooele County, UT 80 km (50 mi) W earthquakes near Tooele County
Morgan County, UT 82 km (51 mi) NE earthquakes near Morgan County
Wasatch County, UT 88 km (55 mi) ESE earthquakes near Wasatch County

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

Aftershocks so far

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

  1. 0.2 7 km NE of Magna, Utah
  2. 0.5 7 km NE of Magna, Utah
  3. 0.7 13 km NNW of Magna, Utah
  4. 0.5 5 km NW of Saratoga Springs, Utah
  5. 0.9 6 km NNW of Saratoga Springs, Utah
  6. 1.1 6 km NE of Magna, Utah
  7. 1.0 6 km SSW of Bingham Canyon, Utah
  8. 2.0 6 km WNW of Lehi, Utah
  9. 1.6 5 km SSW of Bingham Canyon, Utah
  10. 2.3 3 km SW of Bingham Canyon, Utah
  11. 1.6 5 km NNW of Saratoga Springs, Utah
  12. 2.9 6 km NNW of Saratoga Springs, Utah
  13. 1.6 6 km NNW of Saratoga Springs, Utah
  14. 2.2 7 km NNW of Saratoga Springs, Utah
  15. 2.2 5 km ENE of Magna, 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.