QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

Earthquake near Moose Wilson Road, WY

No earthquake was likely felt in Moose Wilson Road in the 24 hours to 3:34 am MST (10:34 UTC). The last one was M 2.2, 7 km (4 mi) E, at 11:08 am MDT on 23 August 2026, estimated intensity II (weak) in town; 3 felt reports to USGS. Every earthquake near Moose Wilson Road

This page: a magnitude 2.3 earthquake was recorded 4 km (3 mi) east of Moose Wilson Road, WY, at 2:51 am MDT on 16 August 2026 (08:51 UTC), 8.9 km deep. 1 person has reported feeling it to USGS.

USGS: 4 km E of Moose Wilson Road, Wyoming

2:51 am MDT, Aug 16, 2026 · · 8.9 km deep · released about 85 lb of TNT

10 km30 km60 km120 km N Teton County 43 kmTeton County 65 kmBonneville County 68 kmMadison County 76 kmFremont County 95 kmCaribou County 102 kmSublette 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
2:51 am MDT on 16 August 2026 ()
Where
4 km (3 mi) east of Moose Wilson Road, WY · earthquakes near Moose Wilson Road
Magnitude
M 2.3 (ml)
Depth
8.9 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Teton County, 43 km NW
Nearest mapped fault
Teton fault, 7 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 48 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 18 km (11 mi) from the epicentre. In Moose Wilson Road, 4 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Jackson 5 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 85 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 11× the energy of this one
  4. This earthquake M 2.3 about 85 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.8 on 2016-08-27 — about 5,600 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.0 20 km ESE of Kelly, Wyoming · 33 km E of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 43.5228, -110.7924. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Teton County, ID 43 km (27 mi) NW earthquakes near Teton County
Teton County, WY 65 km (41 mi) NNE earthquakes near Teton County
Bonneville County, ID 68 km (43 mi) WSW earthquakes near Bonneville County
Madison County, ID 76 km (47 mi) WNW earthquakes near Madison County
Fremont County, ID 95 km (59 mi) NW earthquakes near Fremont County
Caribou County, ID 102 km (63 mi) SW earthquakes near Caribou County

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

Aftershocks so far

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

  1. 2.7 5 km E of Hoback, Wyoming
  2. 2.0 24 km NE of Kelly, Wyoming
  3. 2.2 1 km E of Alpine Northeast, Wyoming
  4. 2.2 6 km N of Jackson, Wyoming
  5. 2.1 5 km NNW of Jackson, Wyoming
  6. 2.3 5 km NNE of Jackson, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.