QuakeIndex

Earthquake · reviewed by a seismologist

M 3.5ml

14 km ESE of Alpine, Wyoming

· 5.0 km deep · released about 2.7 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caribou County 69 kmBonneville County 69 kmTeton County 75 kmSublette County 86 kmMadison County 98 kmLincoln County 102 kmBear Lake County 102 kmTeton County 107 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 3.5 (ml)
Depth
5.0 km below the surface
Felt
47 reports · strongest reported intensity III
Measured shaking
intensity IV (ShakeMap)
Nearest
Caribou County, 69 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3061 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 47 people have reported feeling it to USGS.

How big was it?

This earthquake released about 2.7 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.5 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 63,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 2,800× the energy of this one
  3. Magna, Utah 2020 M 5.7 2,000× the energy of this one
  4. This earthquake M 3.5 about 2.7 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 5.6× more

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 43.1373, -110.8479. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caribou County, ID 69 km (43 mi) NE of here earthquakes near Caribou County
Bonneville County, ID 69 km (43 mi) ESE of here earthquakes near Bonneville County
Teton County, ID 75 km (47 mi) SSE of here earthquakes near Teton County
Sublette County, WY 86 km (54 mi) WNW of here earthquakes near Sublette County
Madison County, ID 98 km (61 mi) SE of here earthquakes near Madison County
Lincoln County, WY 102 km (63 mi) N of here earthquakes near Lincoln County

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

Aftershocks so far

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

  1. 2.4 5 km N of Hoback, Wyoming
  2. 2.1 6 km NNW of Hoback, Wyoming
  3. 1.6 8 km NE of Alpine Northeast, Wyoming
  4. 2.2 19 km WNW of Alpine Northwest, Wyoming
  5. 2.0 19 km S of Irwin, Idaho
  6. 1.9 20 km S of Irwin, Idaho
  7. 1.6 11 km SSE of Kelly, Wyoming
  8. 2.1 7 km WNW of Wilson, Wyoming
  9. 1.5 9 km NE of Irwin, Idaho
  10. 2.0 17 km S of Victor, Idaho
  11. 1.6 10 km NNW of Alpine Northeast, Wyoming
  12. 2.2 5 km NE of Alpine Northeast, Wyoming
  13. 3.1 11 km WNW of Hoback, Wyoming
  14. 2.0 14 km SSE of Victor, Idaho
  15. 2.1 15 km SW of Rafter J Ranch, 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 89 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.