QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

Earthquake near Jackson, WY

No earthquake was likely felt in Jackson in the 24 hours to 8:26 am MST (15:26 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 2.3 earthquake was recorded 27 km (17 mi) north-northwest of Jackson, WY, at 10:56 pm MDT on 25 March 2019 (04:56 UTC), 6.8 km deep.

USGS: 10 km SE of Alta, Wyoming

10:56 pm MDT, Mar 25, 2019 · · 6.8 km deep · released about 88 lb of TNT

10 km30 km60 km120 km N Teton County 23 kmTeton County 58 kmMadison County 59 kmBonneville County 64 kmFremont County 73 kmJefferson County 111 kmCaribou County 111 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
10:56 pm MDT on 25 March 2019 ()
Where
27 km (17 mi) north-northwest of Jackson, WY · earthquakes near Jackson
Magnitude
M 2.3 (ml)
Depth
6.8 km below the surface
Felt
no reports yet
Nearest
Teton County, 23 km WNW
Nearest mapped fault
Teton fault, 12 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 2787 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 19 km (12 mi) from the epicentre. In Jackson, 27 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: Driggs, Victor, Moose Wilson Road, Wilson.

How big was it?

This earthquake released about 88 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 88 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 · 47 km ESE 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 43.6868, -110.9402. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Teton County, ID 23 km (14 mi) WNW earthquakes near Teton County
Teton County, WY 58 km (36 mi) NE earthquakes near Teton County
Madison County, ID 59 km (36 mi) WNW earthquakes near Madison County
Bonneville County, ID 64 km (40 mi) WSW earthquakes near Bonneville County
Fremont County, ID 73 km (46 mi) NW earthquakes near Fremont County
Jefferson County, ID 111 km (69 mi) W earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 1.5 35 km NNE of Alta, Wyoming
  2. 1.6 6 km NW of Wilson, Wyoming
  3. 1.9 29 km ENE of Alta, Wyoming
  4. 3.6 17 km ESE of Kelly, Wyoming
  5. 2.1 12 km W of Wilson, Wyoming
  6. 1.7 10 km SSE of Victor, Idaho
  7. 1.7 11 km ENE of Alta, Wyoming
  8. 2.3 5 km SSW of Driggs, Idaho
  9. 2.0 45 km NE of Alta, Wyoming
  10. 1.6 23 km N of Bondurant, Wyoming
  11. 1.9 8 km NW of Hoback, Wyoming
  12. 1.8 6 km NNE of Alpine Northeast, Wyoming
  13. 2.3 3 km SSE of Jackson, Wyoming
  14. 2.1 16 km WSW of Rafter J Ranch, Wyoming
  15. 2.1 7 km SE of Victor, Idaho

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.