QuakeIndex

Earthquake · reviewed by a seismologist

M 4.7ml

40 km S of Evanston, Wyoming

· 15 km deep · released about 140 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Summit County 9 kmUinta County 49 kmMorgan County 62 kmWasatch County 68 kmDuchesne County 79 kmRich County 85 kmSalt Lake County 92 kmWeber County 93 kmUtah County 111 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 4.7 (ml)
Depth
15 km below the surface
Felt
4305 reports · strongest reported intensity V
Measured shaking
intensity V (ShakeMap)
USGS impact alert
green
Nearest
Summit County, 9 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 4 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 4305 people have reported feeling it to USGS.

How big was it?

This earthquake released about 140 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.7 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 1,200× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 53× the energy of this one
  3. Magna, Utah 2020 M 5.7 38× the energy of this one
  4. This earthquake M 4.7 about 140 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 300× more

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 40.9105, -110.8745. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Summit County, UT 9 km (6 mi) ENE of here earthquakes near Summit County
Uinta County, WY 49 km (31 mi) SSW of here earthquakes near Uinta County
Morgan County, UT 62 km (39 mi) ESE of here earthquakes near Morgan County
Wasatch County, UT 68 km (43 mi) NNE of here earthquakes near Wasatch County
Duchesne County, UT 79 km (49 mi) NNW of here earthquakes near Duchesne County
Rich County, UT 85 km (53 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

16 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
  10. 2.7 41 km ENE of Oakley, Utah
  11. 2.2 42 km ENE of Oakley, Utah
  12. 1.9 41 km SSE of Evanston, Wyoming
  13. 3.0 41 km SSE of Evanston, Wyoming
  14. 2.0 43 km NE of Samak, Utah
  15. 1.6 42 km NE of Samak, 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.