QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

4 km SE of Moose Wilson Road, Wyoming

· 4.1 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Teton County 44 kmBonneville County 67 kmTeton County 68 kmMadison County 75 kmFremont County 96 kmCaribou County 99 kmSublette County 109 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
4.1 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Teton County, 44 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1584 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 15 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 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 43.5002, -110.8087. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, ID 44 km (27 mi) SE of here earthquakes near Teton County
Bonneville County, ID 67 km (41 mi) E of here earthquakes near Bonneville County
Teton County, WY 68 km (42 mi) SSW of here earthquakes near Teton County
Madison County, ID 75 km (47 mi) ESE of here earthquakes near Madison County
Fremont County, ID 96 km (60 mi) SE of here earthquakes near Fremont County
Caribou County, ID 99 km (62 mi) NE of here earthquakes near Caribou County

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

Aftershocks so far

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

  1. 2.8 18 km NE of Star Valley Ranch, Wyoming
  2. 1.7 Wyoming
  3. 2.3 5 km S of Alpine, Wyoming
  4. 2.3 4 km WNW of Bondurant, Wyoming
  5. 2.1 10 km WSW of Bondurant, Wyoming
  6. 1.5 Wyoming
  7. 1.6 Wyoming
  8. 1.8 4 km W of Rafter J Ranch, Wyoming
  9. 1.6 8 km S of Victor, Idaho
  10. 2.0 16 km ESE of Kelly, Wyoming
  11. 1.8 Wyoming
  12. 1.6 5 km W of Teton Village, Wyoming
  13. 1.9 5 km WSW of Teton Village, Wyoming
  14. 1.6 10 km NE of Hoback, Wyoming
  15. 2.4 28 km ENE of Kelly, 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 32,000 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.