QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Jackson, WY

No earthquake was likely felt in Jackson in the 24 hours to 1:11 pm MST (20:11 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 1.8 earthquake was recorded 19 km (12 mi) east of Jackson, WY, at 6:51 pm MDT on 2 September 2022 (00:51 UTC), 8.6 km deep.

USGS: 19 km E of Jackson, Wyoming

6:51 pm MDT, Sep 2, 2022 · · 8.6 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Teton County 65 kmTeton County 67 kmBonneville County 88 kmSublette County 91 kmMadison County 98 kmCaribou County 111 kmFremont County 115 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
6:51 pm MDT on 2 September 2022 ()
Where
19 km (12 mi) east of Jackson, WY · earthquakes near Jackson
Magnitude
M 1.8 (ml)
Depth
8.6 km below the surface
Felt
no reports yet
Nearest
Teton County, 65 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1457 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 10 km (6 mi) from the epicentre. In Jackson, 19 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.

Earthquakes near other towns within 30 km: South Park, Rafter J Ranch, Moose Wilson Road, Hoback, Wilson.

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.

For this area

The largest earthquake within 50 km since 2016 was M 4.8 on 2016-08-27 — about 32,000 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 · 18 km NE 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 43.4513, -110.5290. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Teton County, ID 65 km (40 mi) WNW earthquakes near Teton County
Teton County, WY 67 km (42 mi) N earthquakes near Teton County
Bonneville County, ID 88 km (55 mi) W earthquakes near Bonneville County
Sublette County, WY 91 km (56 mi) SSE earthquakes near Sublette County
Madison County, ID 98 km (61 mi) WNW earthquakes near Madison County
Caribou County, ID 111 km (69 mi) SW earthquakes near Caribou County

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

Aftershocks so far

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

  1. 1.9 24 km NNW of Cora, Wyoming
  2. 1.6 20 km SE of Kelly, Wyoming
  3. 1.6 8 km W of Hoback, Wyoming
  4. 3.1 10 km W of Hoback, Wyoming
  5. 2.1 8 km WNW of Hoback, Wyoming
  6. 1.8 8 km W of Hoback, Wyoming
  7. 3.1 10 km WSW of Hoback, Wyoming
  8. 2.1 7 km E of Alpine Northeast, Wyoming
  9. 2.5 26 km NNE of Bondurant, Wyoming
  10. 2.9 13 km ESE of Kelly, Wyoming
  11. 2.6 10 km S of Bondurant, Wyoming
  12. 1.7 7 km SE of South Park, Wyoming
  13. 2.5 23 km ESE of Kelly, Wyoming
  14. 2.1 7 km ESE of Alpine Northeast, Wyoming
  15. 1.6 18 km NE of Star Valley 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.

On USGS

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