Earthquake · reviewed by a seismologist
M 1.6ml
Earthquake near Jackson, WY
No earthquake was likely felt in Jackson in the 24 hours to 6:15 am MST (13:15 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 1.6 earthquake was recorded 45 km (28 mi) east-southeast of Jackson, WY, at 7:55 am MST on 28 November 2021 (14:55 UTC), 6.0 km deep.
USGS: 12 km NE of Bondurant, Wyoming
- When
- 7:55 am MST on 28 November 2021 ()
- Where
- 45 km (28 mi) east-southeast of Jackson, WY · earthquakes near Jackson
- Magnitude
- M 1.6 (ml)
- Depth
- 6.0 km below the surface
- Felt
- no reports yet
- Nearest
- Sublette County, 63 km SSE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1810 days ago
Earthquake alerts for Jackson, WY
Get a notification in this browser when USGS records an earthquake near Jackson, WY. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 9 km (6 mi) from the epicentre. In Jackson, 45 km away, the estimate is intensity I (not felt). 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.
How big was it?
This earthquake released about 7.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- This earthquake M 1.6 about 7.3 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 65,000 times the energy of this one.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 5.0 20 km ESE of Kelly, Wyoming · 35 km NNW 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 43.2642, -110.2843. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Sublette County, WY | 63 km (39 mi) | SSE | earthquakes near Sublette County |
| Teton County, WY | 88 km (55 mi) | N | earthquakes near Teton County |
| Teton County, ID | 93 km (58 mi) | NW | earthquakes near Teton County |
| Bonneville County, ID | 109 km (68 mi) | W | earthquakes near Bonneville County |
| Caribou County, ID | 115 km (72 mi) | WSW | earthquakes near Caribou County |
| Lincoln County, WY | 120 km (74 mi) | SSW | earthquakes near Lincoln 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.
- 2.5 23 km ESE of Kelly, Wyoming
- 1.6 18 km NE of Star Valley Ranch, Wyoming
- 1.5 18 km ENE of Star Valley Ranch, Wyoming
- 1.9 9 km E of Kelly, Wyoming
- 1.8 22 km E of Kelly, Wyoming
- 1.8 14 km SSE of Bondurant, Wyoming
- 1.6 8 km S of Hoback, Wyoming
- 1.9 5 km NNW of Hoback, Wyoming
- 1.7 5 km SE of Hoback, Wyoming
- 1.7 Wyoming
- 1.7 6 km NW of Bondurant, Wyoming
- 2.0 19 km ENE of Star Valley Ranch, Wyoming
- 2.8 18 km NE of Star Valley Ranch, Wyoming
- 2.3 4 km WNW of Bondurant, Wyoming
- 2.1 10 km WSW of Bondurant, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.