QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

Earthquake near Green River, WY

USGS: 15 km ESE of Little America, Wyoming

6:12 pm MDT, Jun 28, 2022 · · -3.3 km deep · released about 56 lb of TNT

Every earthquake near Green River Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Daggett County 67 kmSweetwater County 71 kmUinta County 75 kmLincoln County 117 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
6:12 pm MDT on 28 June 2022 ()
Where
20 km (12 mi) WSW of Green River, WY · earthquakes near Green River
Magnitude
M 2.2 (ml)
Depth
-3.3 km below the surface
Felt
no reports yet
Nearest
Daggett County, 67 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1557 days ago

A magnitude 2.2 earthquake was recorded 20 km (12 mi) WSW of Green River, WY, at 6:12 pm MDT on 28 June 2022 (00:12 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 56 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 270,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 190,000× the energy of this one
  3. Around the size people start to feel M 3.0 17× the energy of this one
  4. This earthquake M 2.2 about 56 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.2 8 km SE of Little America, Wyoming · 7 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 41.4783, -109.6982. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Daggett County, UT 67 km (42 mi) SSE earthquakes near Daggett County
Sweetwater County, WY 71 km (44 mi) ENE earthquakes near Sweetwater County
Uinta County, WY 75 km (47 mi) WSW earthquakes near Uinta County
Lincoln County, WY 117 km (73 mi) NW earthquakes near Lincoln County
Summit County, UT 126 km (78 mi) WSW earthquakes near Summit County

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

Aftershocks so far

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

  1. 2.8 2 km NNW of Little America, Wyoming
  2. 3.1 3 km NW of Little America, Wyoming
  3. 3.4 3 km NNW of Little America, Wyoming
  4. 3.8 22 km NE of Granger, Wyoming
  5. 3.0 2 km NNW of Little America, Wyoming
  6. 3.0 3 km NW of Little America, Wyoming
  7. 3.1 2 km NNW of Little America, Wyoming
  8. 3.3 2 km NW of Little America, Wyoming
  9. 3.1 2 km NNW of Little America, Wyoming
  10. 3.3 2 km NW of Little America, Wyoming
  11. 3.2 2 km NW of Little America, Wyoming
  12. 3.5 1 km NW of Little America, Wyoming
  13. 3.2 2 km WNW of Little America, Wyoming
  14. 3.2 2 km WNW of Little America, Wyoming
  15. 3.3 1 km NW of Little America, Wyoming

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.