QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

23 km ESE of Kelly, Wyoming

· 7.0 km deep · released about 13 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Teton County 58 kmTeton County 73 kmSublette County 92 kmBonneville County 103 kmMadison County 108 kmFremont County 118 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 1.8 (ml)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Teton County, 58 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3663 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 13 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 810,000× the energy of this one
  3. Around the size people start to feel M 3.0 72× the energy of this one
  4. This earthquake M 1.8 about 13 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 43.5327, -110.3628. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, WY 58 km (36 mi) S of here earthquakes near Teton County
Teton County, ID 73 km (45 mi) ESE of here earthquakes near Teton County
Sublette County, WY 92 km (57 mi) NNW of here earthquakes near Sublette County
Bonneville County, ID 103 km (64 mi) E of here earthquakes near Bonneville County
Madison County, ID 108 km (67 mi) ESE of here earthquakes near Madison County
Fremont County, ID 118 km (73 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. 1.6 15 km E of Alta, Wyoming
  2. 1.6 11 km SSE of Kelly, Wyoming
  3. 1.7 12 km E of Alta, Wyoming
  4. 1.7 36 km E of Kelly, Wyoming
  5. 2.3 14 km ESE of Kelly, Wyoming
  6. 2.4 15 km ENE of Bondurant, Wyoming
  7. 2.0 9 km E of Kelly, Wyoming
  8. 2.4 27 km NE of Kelly, Wyoming
  9. 1.6 37 km NNE of Bondurant, Wyoming
  10. 2.1 28 km NE of Kelly, Wyoming
  11. 2.1 27 km NE of Kelly, Wyoming
  12. 1.6 26 km NNE of Bondurant, Wyoming
  13. 1.5 22 km ENE of Kelly, Wyoming
  14. 1.7 11 km E of Kelly, Wyoming
  15. 1.8 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 36,000 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.