Earthquake · reviewed by a seismologist
M 1.6ml
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 1.6 earthquake was recorded 39 km (24 mi) north-northeast of Jackson, WY, at 1:04 am MDT on 15 September 2025 (07:04 UTC), 6.8 km deep.
USGS: 22 km N of Kelly, Wyoming
- When
- 1:04 am MDT on 15 September 2025 ()
- Where
- 39 km (24 mi) north-northeast of Jackson, WY · earthquakes near Jackson
- Magnitude
- M 1.6 (ml)
- Depth
- 6.8 km below the surface
- Felt
- no reports yet
- Nearest
- Teton County, 32 km NE
- Nearest mapped fault
- Teton fault, 10 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 421 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 8 km (5 mi) from the epicentre. In Jackson, 39 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 6.8 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 2,200,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
- Around the size people start to feel M 3.0 140× the energy of this one
- This earthquake M 1.6 about 6.8 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 4.0 on 2016-02-26 — about 4,400 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 · 36 km SE 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 43.8202, -110.6632. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Teton County, WY | 32 km (20 mi) | NE | earthquakes near Teton County |
| Teton County, ID | 45 km (28 mi) | W | earthquakes near Teton County |
| Fremont County, ID | 79 km (49 mi) | NW | earthquakes near Fremont County |
| Madison County, ID | 80 km (50 mi) | W | earthquakes near Madison County |
| Bonneville County, ID | 91 km (56 mi) | WSW | earthquakes near Bonneville County |
| Park County, WY | 113 km (70 mi) | NE | earthquakes near Park County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
39 earthquakes have been recorded within 50 km since this one.
- 1.2 51 km NE of Alta, Wyoming
- 1.3 51 km NE of Alta, Wyoming
- 0.8 52 km N of Kelly, Wyoming
- 2.0 24 km NE of Kelly, Wyoming
- 0.6 58 km E of Warm River, Idaho
- 1.9 58 km E of Warm River, Idaho
- 1.3 58 km E of Warm River, Idaho
- 0.9 55 km E of Warm River, Idaho
- 0.8 57 km E of Warm River, Idaho
- 1.8 57 km E of Warm River, Idaho
- 2.7 57 km NE of Kelly, Wyoming
- 3.4 57 km NE of Kelly, Wyoming
- 2.2 6 km N of Jackson, Wyoming
- 2.1 5 km NNW of Jackson, Wyoming
- 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
- 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.