QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

Earthquake near Jackson, WY

No earthquake was likely felt in Jackson in the 24 hours to 3:35 am MST (10:35 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 2.7 earthquake was recorded 4 km (3 mi) northeast of Jackson, WY, at 4:25 pm MST on 23 February 2022 (23:25 UTC), 5.3 km deep. 337 people have reported feeling it to USGS.

USGS: 4 km NE of Jackson, Wyoming

4:25 pm MST, Feb 23, 2022 · · 5.3 km deep · released about 340 lb of TNT

10 km30 km60 km120 km N Teton County 48 kmTeton County 65 kmBonneville County 73 kmMadison County 81 kmFremont County 100 kmCaribou County 104 kmSublette County 105 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
4:25 pm MST on 23 February 2022 ()
Where
4 km (3 mi) northeast of Jackson, WY · earthquakes near Jackson
Magnitude
M 2.7 (ml)
Depth
5.3 km below the surface
Felt
337 reports · strongest reported intensity III
Nearest
Teton County, 48 km NW
Nearest mapped fault
Teton fault, 12 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 1368 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 24 km (15 mi) from the epicentre. In Jackson, 4 km away, the estimate is intensity III (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 4 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 1,400 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 · 29 km ENE 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 43.5066, -110.7286. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Teton County, ID 48 km (30 mi) NW earthquakes near Teton County
Teton County, WY 65 km (40 mi) NNE earthquakes near Teton County
Bonneville County, ID 73 km (45 mi) W earthquakes near Bonneville County
Madison County, ID 81 km (50 mi) WNW earthquakes near Madison County
Fremont County, ID 100 km (62 mi) NW earthquakes near Fremont County
Caribou County, ID 104 km (65 mi) SW earthquakes near Caribou County

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

Aftershocks so far

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

  1. 1.6 Wyoming
  2. 1.8 4 km W of Rafter J Ranch, Wyoming
  3. 1.6 8 km S of Victor, Idaho
  4. 2.0 16 km ESE of Kelly, Wyoming
  5. 1.8 Wyoming
  6. 1.6 5 km W of Teton Village, Wyoming
  7. 1.9 5 km WSW of Teton Village, Wyoming
  8. 1.6 10 km NE of Hoback, Wyoming
  9. 2.4 28 km ENE of Kelly, Wyoming
  10. 3.3 10 km W of Hoback, Wyoming
  11. 2.8 7 km WSW of Hoback, Wyoming
  12. 3.7 20 km ESE of Kelly, Wyoming
  13. 2.4 22 km ESE of Kelly, Wyoming
  14. 1.6 13 km ENE of Bondurant, Wyoming
  15. 2.0 6 km N of Victor, 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.

On USGS

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