QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

21 km ESE of Kelly, Wyoming

· 10 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Teton County 58 kmTeton County 71 kmSublette County 93 kmBonneville County 100 kmMadison County 105 kmFremont County 116 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 2.8 (ml)
Depth
10 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Teton County, 58 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1485 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 43.5266, -110.3967. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, WY 58 km (36 mi) S of here earthquakes near Teton County
Teton County, ID 71 km (44 mi) ESE of here earthquakes near Teton County
Sublette County, WY 93 km (58 mi) NNW of here earthquakes near Sublette County
Bonneville County, ID 100 km (62 mi) E of here earthquakes near Bonneville County
Madison County, ID 105 km (66 mi) ESE of here earthquakes near Madison County
Fremont County, ID 116 km (72 mi) SE of here earthquakes near Fremont County

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

Aftershocks so far

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

  1. 2.0 14 km ESE of Kelly, Wyoming
  2. 1.7 15 km ESE of Kelly, Wyoming
  3. 1.8 21 km ESE of Kelly, Wyoming
  4. 1.6 18 km ESE of Kelly, Wyoming
  5. 2.4 7 km W of Hoback, Wyoming
  6. 1.9 24 km NNW of Cora, Wyoming
  7. 1.6 20 km SE of Kelly, Wyoming
  8. 1.6 8 km W of Hoback, Wyoming
  9. 3.1 10 km W of Hoback, Wyoming
  10. 2.1 8 km WNW of Hoback, Wyoming
  11. 1.8 8 km W of Hoback, Wyoming
  12. 2.5 26 km NNE of Bondurant, Wyoming
  13. 2.9 13 km ESE of Kelly, Wyoming
  14. 1.6 52 km NE of Kelly, Wyoming
  15. 2.6 10 km S of Bondurant, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2016-08-27 — it released about 1,000 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.