QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

41 km ENE of Oakley, Utah

· 12 km deep · released about 350 lb of TNT

10 km30 km60 km120 km N Summit County 9 kmUinta County 50 kmMorgan County 63 kmWasatch County 67 kmDuchesne County 77 kmRich County 87 kmSalt Lake County 92 kmWeber County 94 kmUtah 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
Magnitude
M 2.7 (ml)
Depth
12 km below the surface
Felt
2 reports · strongest reported intensity I
Nearest
Summit County, 9 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 146 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 350 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 43,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 31,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.7× the energy of this one
  4. This earthquake M 2.7 about 350 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.

Where

Epicentre 40.8985, -110.8713. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Summit County, UT 9 km (5 mi) ENE of here earthquakes near Summit County
Uinta County, WY 50 km (31 mi) SSW of here earthquakes near Uinta County
Morgan County, UT 63 km (39 mi) ESE of here earthquakes near Morgan County
Wasatch County, UT 67 km (42 mi) NNE of here earthquakes near Wasatch County
Duchesne County, UT 77 km (48 mi) NNW of here earthquakes near Duchesne County
Rich County, UT 87 km (54 mi) SSE of here earthquakes near Rich County

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

Aftershocks so far

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

  1. 1.6 24 km SE of Evanston, Wyoming
  2. 1.9 42 km SSE of Evanston, Wyoming
  3. 2.0 42 km SSE of Evanston, Wyoming
  4. 2.2 42 km SSE of Evanston, Wyoming
  5. 2.2 42 km SSE of Evanston, Wyoming
  6. 1.6 43 km NE of Samak, Utah
  7. 2.5 28 km NNW of Tabiona, Utah
  8. 1.7 2 km ESE of Echo, Utah
  9. 2.1 42 km ENE of Oakley, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.7 on 2026-01-22 — it released about 810 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.