QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

17 km WSW of Auburn, Wyoming

· 5.8 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caribou County 27 kmBear Lake County 52 kmLincoln County 72 kmBonneville County 80 kmFranklin County 81 kmBannock County 83 kmSublette County 106 kmBingham County 110 kmTeton County 113 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 (md)
Depth
5.8 km below the surface
Felt
no reports yet
Nearest
Caribou County, 27 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 285 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 14 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 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 42.7447, -111.2127. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caribou County, ID 27 km (17 mi) E of here earthquakes near Caribou County
Bear Lake County, ID 52 km (32 mi) N of here earthquakes near Bear Lake County
Lincoln County, WY 72 km (45 mi) NW of here earthquakes near Lincoln County
Bonneville County, ID 80 km (49 mi) SSE of here earthquakes near Bonneville County
Franklin County, ID 81 km (50 mi) NE of here earthquakes near Franklin County
Bannock County, ID 83 km (52 mi) E of here earthquakes near Bannock County

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

Aftershocks so far

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

  1. 1.5 11 km E of Bancroft, Idaho
  2. 2.9 23 km WNW of Auburn, Wyoming
  3. 1.6 9 km NW of Georgetown, Idaho
  4. 1.9 6 km W of Bennington, Idaho
  5. 1.8 7 km WSW of Bennington, Idaho
  6. 1.9 11 km NW of Georgetown, Idaho
  7. 1.9 9 km NW of Georgetown, Idaho
  8. 2.2 7 km WNW of Bennington, Idaho
  9. 1.5 6 km WSW of Bennington, Idaho
  10. 2.0 6 km W of Bennington, Idaho
  11. 3.2 6 km WSW of Bennington, Idaho
  12. 1.9 6 km WSW of Bennington, Idaho
  13. 3.0 6 km WSW of Bennington, Idaho
  14. 2.3 6 km W of Bennington, Idaho
  15. 1.7 5 km SSW of Georgetown, Idaho

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 200,000 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.