QuakeIndex

Earthquake · reviewed by a seismologist

M 3.7mwr

20 km ESE of Kelly, Wyoming

· 7.8 km deep · released about 5.4 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Teton County 57 kmTeton County 70 kmSublette County 94 kmBonneville County 100 kmMadison County 105 kmFremont 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
Magnitude
M 3.7 (mwr)
Depth
7.8 km below the surface
Felt
74 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Teton County, 57 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 718 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 74 people have reported feeling it to USGS.

How big was it?

This earthquake released about 5.4 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.7 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 32,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,400× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,000× the energy of this one
  4. This earthquake M 3.7 about 5.4 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 11× more

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.

Where

Epicentre 43.5345, -110.3989. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, WY 57 km (36 mi) S of here earthquakes near Teton County
Teton County, ID 70 km (44 mi) ESE of here earthquakes near Teton County
Sublette County, WY 94 km (58 mi) NNW of here earthquakes near Sublette County
Bonneville County, ID 100 km (62 mi) E of here earthquakes near Bonneville County
Madison County, ID 105 km (65 mi) ESE of here earthquakes near Madison County
Fremont County, ID 116 km (72 mi) SE of here earthquakes near Fremont County

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

Aftershocks so far

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

  1. 2.0 19 km ESE of Kelly, Wyoming
  2. 2.0 16 km E of Kelly, Wyoming
  3. 2.0 5 km WNW of Rafter J Ranch, Wyoming
  4. 1.7 5 km NE of Hoback, Wyoming
  5. 1.5 6 km NE of Hoback, Wyoming
  6. 2.4 6 km ENE of Moose Wilson Road, Wyoming
  7. 1.7 13 km ESE of Kelly, Wyoming
  8. 1.7 6 km NNW of Hoback, Wyoming
  9. 1.9 4 km E of Hoback, Wyoming
  10. 1.5 6 km ENE of Hoback, Wyoming
  11. 1.9 6 km NE of Hoback, Wyoming
  12. 1.5 2 km SSE of Kelly, Wyoming
  13. 1.5 11 km SE of Kelly, Wyoming
  14. 1.5 11 km SE of Kelly, Wyoming
  15. 2.5 11 km ESE of Kelly, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2016-08-27 — it released about 45 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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