QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

33 km NNE of Halls Crossing, Utah

· 12 km deep · released about 13 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Juan County 68 kmWayne County 71 kmGarfield County 80 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 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
San Juan County, 68 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1852 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 13 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 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 840,000× the energy of this one
  3. Around the size people start to feel M 3.0 75× the energy of this one
  4. This earthquake M 1.8 about 13 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 37.7278, -110.5492. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Juan County, UT 68 km (42 mi) WNW of here earthquakes near San Juan County
Wayne County, UT 71 km (44 mi) SSE of here earthquakes near Wayne County
Garfield County, UT 80 km (50 mi) E of here earthquakes near Garfield County
Kane County, UT 123 km (76 mi) ENE of here earthquakes near Kane County
Sevier County, UT 158 km (98 mi) SE of here earthquakes near Sevier County

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

Aftershocks so far

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

  1. 2.2 11 km E of Halls Crossing, Utah
  2. 2.1 24 km ENE of Halls Crossing, Utah
  3. 1.8 26 km NE of Halls Crossing, Utah
  4. 2.5 47 km NNW of Halls Crossing, Utah
  5. 2.3 45 km E of Halls Crossing, Utah
  6. 1.7 49 km SE of Hanksville, Utah
  7. 2.1 19 km WSW of Halls Crossing, Utah
  8. 1.8 43 km N of Halls Crossing, Utah
  9. 2.4 14 km ESE of Halls Crossing, Utah
  10. 1.8 26 km SSE of Hanksville, Utah
  11. 2.1 22 km SE of Halls Crossing, Utah
  12. 2.2 17 km SE of Halls Crossing, Utah
  13. 1.7 32 km NNE of Halls Crossing, 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.