QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Salt Lake City, UT

No earthquake was likely felt in Salt Lake City in the 24 hours to 12:25 am MST (07:25 UTC). The last one was M 2.2, 13 km (8 mi) WSW, at 8:46 am MDT on 17 June 2026, estimated intensity II (weak) in town; 28 felt reports to USGS. Every earthquake near Salt Lake City

This page: a magnitude 2.1 earthquake was recorded 33 km (21 mi) southeast of Salt Lake City, UT, at 3:28 am MST on 18 January 2025 (10:28 UTC), 6.9 km deep.

USGS: 5 km SE of Snowbird, Utah

37 km (23 mi) SE of Salt Lake City, UT · 20 km (12 mi) E of Sandy, UT

3:28 am MST, Jan 18, 2025 · · 6.9 km deep · released about 38 lb of TNT

Every earthquake near Salt Lake City Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Salt Lake County 29 kmWasatch County 45 kmUtah County 47 kmMorgan County 61 kmSummit County 66 kmDavis County 74 kmWeber County 84 kmDuchesne County 105 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
3:28 am MST on 18 January 2025 ()
Where
33 km (21 mi) southeast of Salt Lake City, UT · earthquakes near Salt Lake City
Magnitude
M 2.1 (ml)
Depth
6.9 km below the surface
Felt
no reports yet
Nearest
Salt Lake County, 29 km WNW
Nearest mapped fault
Wasatch fault, 13 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 662 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 15 km (9 mi) from the epicentre. In Salt Lake City, 33 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: Midway, Park City, Granite, Alpine, Heber City, Snyderville.

How big was it?

This earthquake released about 38 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 5.8 390,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 280,000× the energy of this one
  3. Around the size people start to feel M 3.0 25× the energy of this one
  4. This earthquake M 2.1 about 38 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 280,000 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 · 23 km NW of this epicentre
  2. 5.0 1 km NE of Magna, Utah · 44 km WNW 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 40.5412, -111.6203. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Salt Lake County, UT 29 km (18 mi) WNW earthquakes near Salt Lake County
Wasatch County, UT 45 km (28 mi) ESE earthquakes near Wasatch County
Utah County, UT 47 km (29 mi) S earthquakes near Utah County
Morgan County, UT 61 km (38 mi) N earthquakes near Morgan County
Summit County, UT 66 km (41 mi) NE earthquakes near Summit County
Davis County, UT 74 km (46 mi) NW earthquakes near Davis 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. 1.3 1 km ESE of Summit Park, Utah
  2. 1.1 1 km ESE of Summit Park, Utah
  3. 2.4 1 km ENE of Summit Park, Utah
  4. 1.2 14 km N of Summit Park, Utah
  5. 1.1 6 km NE of Magna, Utah
  6. 1.0 6 km SSW of Bingham Canyon, Utah
  7. 2.0 6 km WNW of Lehi, Utah
  8. 1.6 5 km SSW of Bingham Canyon, Utah
  9. 2.3 3 km SW of Bingham Canyon, Utah
  10. 1.6 5 km NNW of Saratoga Springs, Utah
  11. 1.6 8 km E of Independence, Utah
  12. 2.9 6 km NNW of Saratoga Springs, Utah
  13. 1.6 6 km NNW of Saratoga Springs, Utah
  14. 1.6 2 km ENE of Summit Park, Utah
  15. 1.8 5 km E of Heber City, 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.