QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

16 km ESE of Shell, Wyoming

· 17 km deep · released about 64 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Big Horn County 32 kmWashakie County 65 kmSheridan County 67 kmJohnson County 93 kmBig Horn County 105 kmHot Springs County 106 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 2.2 (ml)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Big Horn County, 32 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1868 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 64 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 230,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 170,000× the energy of this one
  3. Around the size people start to feel M 3.0 15× the energy of this one
  4. This earthquake M 2.2 about 64 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.

Where

Epicentre 44.4622, -107.6053. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Big Horn County, WY 32 km (20 mi) ESE of here earthquakes near Big Horn County
Washakie County, WY 65 km (40 mi) N of here earthquakes near Washakie County
Sheridan County, WY 67 km (42 mi) WSW of here earthquakes near Sheridan County
Johnson County, WY 93 km (58 mi) WNW of here earthquakes near Johnson County
Big Horn County, MT 105 km (65 mi) S of here earthquakes near Big Horn County
Hot Springs County, WY 106 km (66 mi) NE of here earthquakes near Hot Springs County

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

Aftershocks so far

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

  1. 2.4 5 km ESE of Manderson, Wyoming
  2. 2.8 8 km S of Shell, 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.