QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

29 km E of La Sal, UT

· 0.8 km deep · released about 77 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Miguel County 52 kmMontrose County 59 kmDolores County 70 kmMesa County 92 kmGrand County 96 kmOuray County 100 kmSan Juan County 107 kmMontezuma County 108 kmDelta County 112 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 2.3 (md)
Depth
0.8 km below the surface
Felt
no reports yet
Nearest
San Miguel County, 52 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2024 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 77 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 77 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 38.2762, -108.9185. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Miguel County, CO 52 km (32 mi) NW of here earthquakes near San Miguel County
Montrose County, CO 59 km (36 mi) WSW of here earthquakes near Montrose County
Dolores County, CO 70 km (44 mi) NNW of here earthquakes near Dolores County
Mesa County, CO 92 km (57 mi) SSW of here earthquakes near Mesa County
Grand County, UT 96 km (60 mi) SE of here earthquakes near Grand County
Ouray County, CO 100 km (62 mi) W of here earthquakes near Ouray County

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

Aftershocks so far

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

  1. 1.5 26 km ESE of La Sal, Utah
  2. 2.0 29 km E of La Sal, Utah
  3. 1.6 28 km ESE of La Sal, Utah
  4. 2.1 28 km E of La Sal, Utah
  5. 2.2 28 km E of La Sal, Utah
  6. 2.0 28 km E of La Sal, Utah
  7. 2.1 28 km E of La Sal, Utah
  8. 1.6 30 km E of La Sal, Utah
  9. 1.5 29 km E of La Sal, Utah
  10. 1.5 29 km E of La Sal, Utah
  11. 2.1 20 km WSW of Naturita, Colorado
  12. 1.7 28 km E of La Sal, 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 4.5 on 2019-03-04 — it released about 2,100 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.