QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Summit Park, UT

No earthquake was likely felt in Summit Park in the 24 hours to 9:44 am MST (16:44 UTC). The last one was M 2.4, in Summit Park, at 1:30 pm MDT on 17 October 2026, estimated intensity II (weak) in town; 6 felt reports to USGS. Every earthquake near Summit Park

This page: a magnitude 1.8 earthquake was recorded 13 km (8 mi) north-northwest of Summit Park, UT, at 4:52 pm MDT on 12 April 2022 (22:52 UTC), 11 km deep.

USGS: 13 km NNW of Summit Park, Utah

26 km (16 mi) ENE of Salt Lake City, UT · 25 km (15 mi) NE of Millcreek, UT

4:52 pm MDT, Apr 12, 2022 · · 11 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Morgan County 26 kmSalt Lake County 32 kmWeber County 49 kmDavis County 51 kmSummit County 57 kmWasatch County 71 kmUtah County 82 kmRich County 92 kmCache County 97 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
4:52 pm MDT on 12 April 2022 ()
Where
13 km (8 mi) north-northwest of Summit Park, UT · earthquakes near Summit Park
Magnitude
M 1.8 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Morgan County, 26 km NNE
Nearest mapped fault
Main Canyon fault, 7 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 1675 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 7 km (4 mi) from the epicentre. In Summit Park, 13 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: Silver Summit, Morgan, Bountiful, Centerville, Snyderville, Woods Cross.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 730,000× the energy of this one
  3. Around the size people start to feel M 3.0 65× the energy of this one
  4. This earthquake M 1.8 about 15 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 730,000 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 · 22 km SW of this epicentre
  2. 5.0 1 km NE of Magna, Utah · 41 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 40.8620, -111.6453. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Morgan County, UT 26 km (16 mi) NNE earthquakes near Morgan County
Salt Lake County, UT 32 km (20 mi) SW earthquakes near Salt Lake County
Weber County, UT 49 km (31 mi) NNW earthquakes near Weber County
Davis County, UT 51 km (31 mi) WNW earthquakes near Davis County
Summit County, UT 57 km (35 mi) E earthquakes near Summit County
Wasatch County, UT 71 km (44 mi) SE earthquakes near Wasatch County

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

Aftershocks so far

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

  1. 1.7 5 km ENE of Magna, Utah
  2. 2.5 5 km ENE of Magna, Utah
  3. 1.6 13 km SSE of Morgan, Utah
  4. 1.9 25 km SW of Evanston, Wyoming
  5. 1.6 8 km NE of Morgan, Utah
  6. 1.8 7 km NE of Morgan, Utah
  7. 2.3 5 km ENE of Huntsville, Utah
  8. 2.4 11 km ENE of Huntsville, Utah
  9. 1.6 5 km ENE of Magna, Utah
  10. 1.8 5 km ENE of Magna, Utah
  11. 2.0 12 km WSW of Echo, Utah
  12. 2.0 6 km E of Silver Summit, Utah
  13. 1.6 5 km NNW of West Valley City, Utah
  14. 2.5 8 km NNW of Summit Park, Utah
  15. 1.5 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.