QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

5 km ESE of Manderson, Wyoming

· 16 km deep · released about 140 lb of TNT

10 km30 km60 km120 km N Big Horn County 31 kmWashakie County 46 kmHot Springs County 74 kmSheridan County 99 kmJohnson County 107 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.4 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Big Horn County, 31 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 549 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 140 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 78,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.9× the energy of this one
  4. This earthquake M 2.4 about 140 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 44.2563, -107.8932. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Big Horn County, WY 31 km (19 mi) SSE of here earthquakes near Big Horn County
Washakie County, WY 46 km (28 mi) NNW of here earthquakes near Washakie County
Hot Springs County, WY 74 km (46 mi) NE of here earthquakes near Hot Springs County
Sheridan County, WY 99 km (62 mi) SW of here earthquakes near Sheridan County
Johnson County, WY 107 km (66 mi) WNW of here earthquakes near Johnson County
Carbon County, MT 140 km (87 mi) SE of here earthquakes near Carbon County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.