QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

Earthquake near Hoback, WY

No earthquake was likely felt in Hoback in the 24 hours to 7:12 am MST (14:12 UTC). The last one was M 2.7, 5 km (3 mi) E, at 6:18 pm MST on 6 November 2026, estimated intensity III (weak) in town; 1 felt report to USGS. Every earthquake near Hoback

This page: a magnitude 2.8 earthquake was recorded 11 km (7 mi) east of Hoback, WY, at 12:37 am MST on 30 November 2016 (07:37 UTC), 5.0 km deep. 3 people have reported feeling it to USGS.

USGS: 10 km E of Hoback, Wyoming

12:37 am MST, Nov 30, 2016 · · 5.0 km deep · released about 480 lb of TNT

10 km30 km60 km120 km N Teton County 70 kmBonneville County 79 kmSublette County 82 kmTeton County 88 kmCaribou County 91 kmMadison County 99 kmLincoln County 116 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
12:37 am MST on 30 November 2016 ()
Where
11 km (7 mi) east of Hoback, WY · earthquakes near Hoback
Magnitude
M 2.8 (ml)
Depth
5.0 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Teton County, 70 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3549 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 27 km (17 mi) from the epicentre. In Hoback, 11 km away, the estimate is intensity III (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: Hoback 11 km, intensity III · Jackson 24 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 1,000 times the energy of this one.

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

  1. 5.0 20 km ESE of Kelly, Wyoming · 39 km NNE 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 43.2755, -110.6533. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Teton County, ID 70 km (44 mi) NW earthquakes near Teton County
Bonneville County, ID 79 km (49 mi) W earthquakes near Bonneville County
Sublette County, WY 82 km (51 mi) SE earthquakes near Sublette County
Teton County, WY 88 km (55 mi) NNE earthquakes near Teton County
Caribou County, ID 91 km (56 mi) SW earthquakes near Caribou County
Madison County, ID 99 km (62 mi) NW earthquakes near Madison 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. 1.8 17 km N of Alpine Northeast, Wyoming
  2. 1.5 18 km N of Alpine Northeast, Wyoming
  3. 1.6 17 km WSW of Rafter J Ranch, Wyoming
  4. 1.6 17 km N of Alpine Northeast, Wyoming
  5. 1.6 17 km N of Alpine Northeast, Wyoming
  6. 1.5 18 km N of Alpine Northeast, Wyoming
  7. 2.3 16 km N of Alpine Northeast, Wyoming
  8. 1.8 18 km N of Alpine Northeast, Wyoming
  9. 1.7 16 km NW of Alpine Northeast, Wyoming
  10. 1.7 11 km E of Kelly, Wyoming
  11. 1.8 Wyoming
  12. 1.9 17 km E of Jackson, Wyoming
  13. 1.7 16 km ESE of Kelly, Wyoming
  14. 1.6 8 km ESE of South Park, Wyoming
  15. 2.2 13 km ESE of Irwin, 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.