QuakeIndex

quarry blast · reviewed by a seismologist

M 2.1ml

1 km WSW of Diamondville, Wyoming

· -2.0 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lincoln County 52 kmUinta County 54 kmRich County 59 kmBear Lake County 85 kmCache County 99 kmSummit County 106 kmFranklin County 114 kmMorgan County 114 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 2.1 (ml)
Depth
-2.0 km below the surface
Felt
no reports yet
Nearest
Lincoln County, 52 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1682 days ago

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

USGS catalogues this as quarry blast, not an earthquake.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 41.7730, -110.5573. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lincoln County, WY 52 km (32 mi) SSE of here earthquakes near Lincoln County
Uinta County, WY 54 km (34 mi) N of here earthquakes near Uinta County
Rich County, UT 59 km (37 mi) ENE of here earthquakes near Rich County
Bear Lake County, ID 85 km (53 mi) SE of here earthquakes near Bear Lake County
Cache County, UT 99 km (61 mi) E of here earthquakes near Cache County
Summit County, UT 106 km (66 mi) NNE of here earthquakes near Summit County

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

Aftershocks so far

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

  1. 1.7 19 km NE of Bear River, Wyoming
  2. 1.7 14 km SW of La Barge, Wyoming
  3. 2.3 9 km WNW of Fort Bridger, Wyoming
  4. 1.6 14 km SW of Calpet, 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.