QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

Earthquake near Jackson, WY

No earthquake was likely felt in Jackson in the 24 hours to 2:34 pm MST (21:34 UTC). The last one was M 2.7, 23 km (14 mi) S, at 6:18 pm MST on 6 November 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Jackson

This page: a magnitude 3.1 earthquake was recorded 36 km (22 mi) east of Jackson, WY, at 8:18 pm MDT on 5 April 2026 (02:18 UTC), 9.7 km deep.

USGS: 26 km ESE of Kelly, Wyoming

8:18 pm MDT, Apr 5, 2026 · · 9.7 km deep · released about 1,300 lb of TNT

10 km30 km60 km120 km N Teton County 58 kmTeton County 76 kmSublette County 91 kmBonneville County 106 kmMadison County 111 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
8:18 pm MDT on 5 April 2026 ()
Where
36 km (22 mi) east of Jackson, WY · earthquakes near Jackson
Magnitude
M 3.1 (ml)
Depth
9.7 km below the surface
Felt
no reports yet
Nearest
Teton County, 58 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 144 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 41 km (25 mi) from the epicentre. In Jackson, 36 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 36 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 250,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,900× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.4× 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.8 on 2016-08-27 — about 350 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 · 6 km NW 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 43.5356, -110.3210. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Teton County, WY 58 km (36 mi) N earthquakes near Teton County
Teton County, ID 76 km (47 mi) WNW earthquakes near Teton County
Sublette County, WY 91 km (57 mi) SSE earthquakes near Sublette County
Bonneville County, ID 106 km (66 mi) W earthquakes near Bonneville County
Madison County, ID 111 km (69 mi) WNW earthquakes near Madison County
Fremont County, ID 120 km (75 mi) NW earthquakes near Fremont County

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

Aftershocks so far

15 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 6 km N of Jackson, Wyoming
  4. 2.1 5 km NNW of Jackson, Wyoming
  5. 2.3 5 km NNE of Jackson, Wyoming
  6. 2.3 4 km E of Moose Wilson Road, Wyoming
  7. 2.6 5 km NNW of Jackson, Wyoming
  8. 2.2 23 km ESE of Jackson, Wyoming
  9. 2.3 22 km ESE of Jackson, Wyoming
  10. 2.2 25 km SE of Kelly, Wyoming
  11. 1.6 22 km SE of Kelly, Wyoming
  12. 2.1 23 km ESE of Jackson, Wyoming
  13. 2.0 23 km ESE of Jackson, Wyoming
  14. 1.8 27 km NNE of Bondurant, Wyoming
  15. 2.0 3 km NE of Hoback, 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.