QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

2 km SSW of Wallsburg, Utah

· 7.4 km deep · released about 570 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Wasatch County 24 kmUtah County 34 kmSalt Lake County 53 kmSummit County 69 kmMorgan County 82 kmDuchesne County 86 kmDavis County 99 kmCarbon County 105 kmWeber County 107 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 2.9 (ml)
Depth
7.4 km below the surface
Felt
89 reports · strongest reported intensity IV
Nearest
Wasatch County, 24 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1955 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 89 people have reported feeling it to USGS.

How big was it?

This earthquake released about 570 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 27,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 19,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.7× the energy of this one
  4. This earthquake M 2.9 about 570 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 40.3642, -111.4363. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Wasatch County, UT 24 km (15 mi) W of here earthquakes near Wasatch County
Utah County, UT 34 km (21 mi) NE of here earthquakes near Utah County
Salt Lake County, UT 53 km (33 mi) SE of here earthquakes near Salt Lake County
Summit County, UT 69 km (43 mi) SW of here earthquakes near Summit County
Morgan County, UT 82 km (51 mi) S of here earthquakes near Morgan County
Duchesne County, UT 86 km (53 mi) W of here earthquakes near Duchesne County

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

Aftershocks so far

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

  1. 1.9 24 km SSE of Independence, Utah
  2. 2.4 24 km SSE of Independence, Utah
  3. 1.8 25 km SSE of Independence, Utah
  4. 2.2 25 km SSE of Independence, Utah
  5. 1.5 24 km SSE of Independence, Utah
  6. 2.0 25 km SSE of Independence, Utah
  7. 1.8 6 km ESE of Daniel, Utah
  8. 2.0 7 km NNW of Saratoga Springs, Utah
  9. 1.6 6 km WNW of Lehi, Utah
  10. 1.6 7 km WNW of Lehi, Utah
  11. 1.7 4 km WNW of Silver Summit, Utah
  12. 2.8 6 km WNW of Independence, Utah
  13. 1.9 9 km W of Independence, Utah
  14. 1.8 3 km WSW of Bluffdale, Utah
  15. 1.6 7 km SSE of Wallsburg, 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.