QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

20 km ENE of Panguitch, Utah

· 9.8 km deep · released about 16 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Piute County 48 kmGarfield County 68 kmKane County 79 kmIron County 95 kmSevier County 100 kmBeaver County 102 kmWayne County 115 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 1.8 (ml)
Depth
9.8 km below the surface
Felt
no reports yet
Nearest
Piute County, 48 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 144 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 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 970,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 680,000× the energy of this one
  3. Around the size people start to feel M 3.0 61× the energy of this one
  4. This earthquake M 1.8 about 16 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 37.9103, -112.2248. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Piute County, UT 48 km (30 mi) S of here earthquakes near Piute County
Garfield County, UT 68 km (43 mi) W of here earthquakes near Garfield County
Kane County, UT 79 km (49 mi) NNW of here earthquakes near Kane County
Iron County, UT 95 km (59 mi) E of here earthquakes near Iron County
Sevier County, UT 100 km (62 mi) SSW of here earthquakes near Sevier County
Beaver County, UT 102 km (63 mi) ESE of here earthquakes near Beaver County

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

Aftershocks so far

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

  1. 1.3 15 km SE of Hatch, Utah
  2. 1.6 18 km WSW of Panguitch, Utah
  3. 1.9 17 km SSW of Beaver, Utah
  4. 1.5 1 km SW of Circleville, Utah
  5. 1.8 1 km W of Circleville, Utah
  6. 1.7 2 km SW of Circleville, Utah
  7. 1.6 10 km SW of Circleville, Utah
  8. 1.5 9 km NW of Junction, Utah
  9. 1.7 2 km WSW of Circleville, Utah
  10. 1.9 3 km W of Circleville, Utah
  11. 1.8 3 km WSW of Circleville, Utah
  12. 1.6 1 km WSW of Circleville, Utah
  13. 1.8 2 km W of Circleville, Utah
  14. 1.7 2 km SW of Circleville, Utah
  15. 1.8 3 km WSW of Circleville, 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 8,200 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.