QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

4 km WSW of Thayne, Wyoming

· 8.4 km deep · released about 82 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caribou County 42 kmBear Lake County 72 kmBonneville County 72 kmLincoln County 80 kmSublette County 94 kmTeton County 97 kmBannock County 99 kmFranklin County 102 kmMadison County 110 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 2.3 (ml)
Depth
8.4 km below the surface
Felt
no reports yet
Nearest
Caribou County, 42 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 601 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 82 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 82 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 42.8985, -111.0540. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caribou County, ID 42 km (26 mi) ENE of here earthquakes near Caribou County
Bear Lake County, ID 72 km (45 mi) NNE of here earthquakes near Bear Lake County
Bonneville County, ID 72 km (45 mi) SE of here earthquakes near Bonneville County
Lincoln County, WY 80 km (50 mi) NNW of here earthquakes near Lincoln County
Sublette County, WY 94 km (58 mi) W of here earthquakes near Sublette County
Teton County, ID 97 km (60 mi) S of here earthquakes near Teton County

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

Aftershocks so far

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

  1. 2.2 1 km E of Alpine Northeast, Wyoming
  2. 2.9 23 km WNW of Auburn, Wyoming
  3. 1.9 11 km NW of Georgetown, Idaho
  4. 2.4 17 km WSW of Auburn, Wyoming
  5. 2.7 26 km NE of Soda Springs, Idaho
  6. 1.9 13 km WSW of Fairview, Wyoming
  7. 2.3 10 km SW of Auburn, Wyoming
  8. 2.5 18 km W of Fairview, Wyoming
  9. 3.6 13 km W of Fairview, Wyoming
  10. 1.8 19 km SW of Freedom, Idaho
  11. 2.2 11 km ESE of Soda Springs, Idaho
  12. 2.5 17 km ENE of Georgetown, Idaho
  13. 2.0 10 km NNW of Georgetown, Idaho
  14. 2.3 17 km W of Fairview, Wyoming
  15. 1.8 17 km WSW of Auburn, 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 5.3 on 2017-09-02 — it released about 33,000 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.