QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

9 km NW of Panguitch, Utah

· 7.7 km deep · released about 40 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Piute County 60 kmIron County 70 kmBeaver County 83 kmKane County 91 kmGarfield County 93 kmWashington County 111 kmSevier County 113 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
7.7 km below the surface
Felt
no reports yet
Nearest
Piute County, 60 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1599 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 40 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 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 37.8857, -112.5043. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Piute County, UT 60 km (37 mi) SSW of here earthquakes near Piute County
Iron County, UT 70 km (44 mi) E of here earthquakes near Iron County
Beaver County, UT 83 km (52 mi) SE of here earthquakes near Beaver County
Kane County, UT 91 km (57 mi) NW of here earthquakes near Kane County
Garfield County, UT 93 km (58 mi) W of here earthquakes near Garfield County
Washington County, UT 111 km (69 mi) NE of here earthquakes near Washington County

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

Aftershocks so far

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

  1. 1.6 12 km NE of Paragonah, Utah
  2. 1.7 14 km WNW of Junction, Utah
  3. 2.0 12 km WNW of Junction, Utah
  4. 1.9 12 km WNW of Junction, Utah
  5. 2.2 11 km WNW of Junction, Utah
  6. 1.8 17 km S of Beaver, Utah
  7. 1.6 Utah
  8. 1.6 8 km WNW of Junction, Utah
  9. 2.1 18 km NE of Paragonah, Utah
  10. 2.0 9 km E of Beaver, Utah
  11. 1.9 6 km NNW of Circleville, Utah
  12. 1.7 10 km NW of Panguitch, Utah
  13. 1.9 6 km NNW of Enoch, Utah
  14. 1.7 4 km W of Summit, Utah
  15. 1.5 16 km NNW of Panguitch, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2020-10-03 — it released about 3,200 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.