QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

23 km SE of Antimony, Utah

· 8.9 km deep · released about 69 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garfield County 35 kmPiute County 50 kmKane County 75 kmWayne County 81 kmSevier County 88 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
8.9 km below the surface
Felt
no reports yet
Nearest
Garfield County, 35 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3258 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 69 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 5.8 220,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 14× the energy of this one
  4. This earthquake M 2.2 about 69 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 37.9513, -111.8252. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garfield County, UT 35 km (22 mi) WNW of here earthquakes near Garfield County
Piute County, UT 50 km (31 mi) SSE of here earthquakes near Piute County
Kane County, UT 75 km (47 mi) N of here earthquakes near Kane County
Wayne County, UT 81 km (50 mi) WSW of here earthquakes near Wayne County
Sevier County, UT 88 km (55 mi) S of here earthquakes near Sevier County
Emery County, UT 152 km (94 mi) SW of here earthquakes near Emery County

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

Aftershocks so far

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

  1. 1.9 12 km N of Antimony, Utah
  2. 2.1 7 km SW of Circleville, Utah
  3. 2.2 6 km SW of Circleville, Utah
  4. 2.2 7 km SW of Circleville, Utah
  5. 1.7 6 km SW of Circleville, Utah
  6. 1.6 4 km SE of Circleville, Utah
  7. 1.6 6 km SSE of Circleville, Utah
  8. 2.4 4 km WSW of Circleville, Utah
  9. 2.2 6 km WSW of Circleville, Utah
  10. 2.5 5 km SW of Circleville, Utah
  11. 2.3 6 km WSW of Circleville, Utah
  12. 2.5 23 km NE of Tropic, Utah
  13. 2.3 14 km SW of Antimony, Utah
  14. 1.9 9 km SW of Circleville, Utah
  15. 1.9 18 km E of Antimony, Utah

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.