QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

14 km E of Colorado City, Colorado

· 5.0 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pueblo County 28 kmHuerfano County 40 kmCuster County 63 kmOtero County 84 kmFremont County 85 kmCrowley County 88 kmLas Animas County 91 kmEl Paso County 97 kmCostilla County 101 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 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Pueblo County, 28 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1030 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 85 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 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 37.9676, -104.6784. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pueblo County, CO 28 km (17 mi) SW of here earthquakes near Pueblo County
Huerfano County, CO 40 km (25 mi) NE of here earthquakes near Huerfano County
Custer County, CO 63 km (39 mi) ESE of here earthquakes near Custer County
Otero County, CO 84 km (52 mi) W of here earthquakes near Otero County
Fremont County, CO 85 km (53 mi) SE of here earthquakes near Fremont County
Crowley County, CO 88 km (54 mi) WSW of here earthquakes near Crowley County

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

Aftershocks so far

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

  1. 1.8 10 km SW of Walsenburg, Colorado
  2. 1.5 10 km SW of Walsenburg, Colorado
  3. 2.4 10 km SW of Walsenburg, Colorado
  4. 2.7 8 km SW of Walsenburg, Colorado
  5. 2.5 12 km NNW of Walsenburg, Colorado
  6. 2.9 5 km SSW of Walsenburg, Colorado
  7. 2.3 7 km SW of Walsenburg, Colorado
  8. 2.3 5 km SSW of Walsenburg, Colorado
  9. 2.4 15 km ENE of Colorado City, Colorado
  10. 1.8 21 km WSW of Beulah Valley, Colorado
  11. 2.6 21 km ESE of Colorado City, Colorado
  12. 1.6 16 km E of Colorado City, Colorado
  13. 1.7 10 km SE of Walsenburg, Colorado
  14. 1.7 11 km SSE of Walsenburg, Colorado
  15. 1.6 13 km ENE of Colorado City, Colorado

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.