Earthquake · reviewed by a seismologist
M 1.5ml
Earthquake near Jackson, WY
No earthquake was likely felt in Jackson in the 24 hours to 7:39 am MST (14:39 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 1.5 earthquake was recorded 25 km (16 mi) south-southeast of Jackson, WY, at 4:14 pm MDT on 9 August 2019 (22:14 UTC), 6.4 km deep.
USGS: Wyoming
- When
- 4:14 pm MDT on 9 August 2019 ()
- Where
- 25 km (16 mi) south-southeast of Jackson, WY · earthquakes near Jackson
- Magnitude
- M 1.5 (ml)
- Depth
- 6.4 km below the surface
- Felt
- no reports yet
- Nearest
- Teton County, 70 km NW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2650 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, 25 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.
Earthquakes near other towns within 30 km: Hoback, South Park, Rafter J Ranch.
How big was it?
This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
- Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
- Around the size people start to feel M 3.0 180× the energy of this one
- This earthquake M 1.5 about 5.4 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 89,000 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 · 42 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 43.2617, -110.6740. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Teton County, ID | 70 km (44 mi) | NW | earthquakes near Teton County |
| Bonneville County, ID | 78 km (49 mi) | WNW | earthquakes near Bonneville County |
| Sublette County, WY | 83 km (51 mi) | SE | earthquakes near Sublette County |
| Caribou County, ID | 88 km (55 mi) | SW | earthquakes near Caribou County |
| Teton County, WY | 90 km (56 mi) | NNE | earthquakes near Teton County |
| Madison County, ID | 99 km (61 mi) | NW | earthquakes near Madison County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
55 earthquakes have been recorded within 50 km since this one.
- 2.3 8 km W of Bondurant, Wyoming
- 1.6 7 km WNW of Bondurant, Wyoming
- 2.6 9 km W of Bondurant, Wyoming
- 1.9 16 km SW of Wilson, Wyoming
- 1.6 12 km NE of Bondurant, Wyoming
- 1.9 9 km W of Bondurant, Wyoming
- 2.0 Wyoming
- 1.5 32 km ESE of Kelly, Wyoming
- 2.0 11 km WSW of Bondurant, Wyoming
- 1.9 9 km W of Bondurant, Wyoming
- 2.2 11 km E of Kelly, Wyoming
- 2.0 29 km ESE of Kelly, Wyoming
- 1.5 17 km ENE of Bondurant, Wyoming
- 1.6 24 km ESE of Kelly, Wyoming
- 2.1 7 km SSE 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
- 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.