QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Wilson, WY

No earthquake was likely felt in Wilson in the 24 hours to 8:29 am MST (15:29 UTC). The last one was M 2.2, 10 km (6 mi) ENE, at 11:08 am MDT on 23 August 2026, estimated intensity II (weak) in town; 3 felt reports to USGS. Every earthquake near Wilson

This page: a magnitude 2.1 earthquake was recorded 8 km (5 mi) west-northwest of Wilson, WY, at 2:39 pm MST on 18 January 2019 (21:39 UTC), 2.9 km deep.

USGS: 7 km WNW of Wilson, Wyoming

2:39 pm MST, Jan 18, 2019 · · 2.9 km deep · released about 43 lb of TNT

10 km30 km60 km120 km N Teton County 32 kmBonneville County 56 kmMadison County 63 kmTeton County 71 kmFremont County 87 kmCaribou County 96 kmJefferson County 113 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
2:39 pm MST on 18 January 2019 ()
Where
8 km (5 mi) west-northwest of Wilson, WY · earthquakes near Wilson
Magnitude
M 2.1 (ml)
Depth
2.9 km below the surface
Felt
no reports yet
Nearest
Teton County, 32 km NW
Nearest mapped fault
Teton fault, 7 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 2854 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 17 km (11 mi) from the epicentre. In Wilson, 8 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.

Likely felt in: Jackson 17 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.0 20 km ESE of Kelly, Wyoming · 46 km E 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 43.5385, -110.9537. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Teton County, ID 32 km (20 mi) NW earthquakes near Teton County
Bonneville County, ID 56 km (35 mi) WSW earthquakes near Bonneville County
Madison County, ID 63 km (39 mi) WNW earthquakes near Madison County
Teton County, WY 71 km (44 mi) NE earthquakes near Teton County
Fremont County, ID 87 km (54 mi) NNW earthquakes near Fremont County
Caribou County, ID 96 km (60 mi) SSW 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. 2.1 7 km SE of Victor, Idaho
  2. 3.7 17 km E of Kelly, Wyoming
  3. 1.6 18 km SSE of Kelly, Wyoming
  4. 2.3 16 km E of Kelly, Wyoming
  5. 1.8 15 km E of Kelly, Wyoming
  6. 2.1 11 km WNW of Hoback, Wyoming
  7. 2.0 2 km S of Jackson, Wyoming
  8. 1.5 14 km E of Kelly, Wyoming
  9. 1.7 11 km ESE of Alpine, Wyoming
  10. 2.0 19 km N of Alpine Northeast, Wyoming
  11. 1.9 14 km SW of Wilson, Wyoming
  12. 1.6 12 km SW of Wilson, Wyoming
  13. 1.5 6 km ESE of Victor, Idaho
  14. 2.0 southern Idaho
  15. 2.0 11 km NE 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

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