QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

32 km NNE of Ute Park, New Mexico

· 5.0 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Colfax County 40 kmCostilla County 63 kmTaos County 64 kmHuerfano County 95 kmMora County 95 kmLas Animas County 100 kmAlamosa County 108 kmConejos 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 1.8 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Colfax County, 40 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 547 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 15 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 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 36.8346, -104.9931. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Colfax County, NM 40 km (25 mi) NW of here earthquakes near Colfax County
Costilla County, CO 63 km (39 mi) SE of here earthquakes near Costilla County
Taos County, NM 64 km (40 mi) ENE of here earthquakes near Taos County
Huerfano County, CO 95 km (59 mi) S of here earthquakes near Huerfano County
Mora County, NM 95 km (59 mi) N of here earthquakes near Mora County
Las Animas County, CO 100 km (62 mi) WSW of here earthquakes near Las Animas County

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

Aftershocks so far

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

  1. 1.9 12 km SSE of Stonewall Gap, Colorado
  2. 1.6 9 km SSE of Stonewall Gap, Colorado
  3. 1.7 10 km SE of Stonewall Gap, Colorado
  4. 1.7 15 km S of Stonewall Gap, Colorado
  5. 2.0 11 km SSE of Stonewall Gap, Colorado
  6. 1.7 16 km S of Weston, Colorado
  7. 1.5 27 km S of Weston, Colorado
  8. 1.5 24 km S of Weston, Colorado
  9. 1.6 27 km SSW of Segundo, Colorado
  10. 1.7 29 km S of Segundo, Colorado
  11. 1.5 32 km WSW of Raton, New Mexico
  12. 2.1 28 km S of Weston, Colorado
  13. 1.6 28 km S of Segundo, Colorado
  14. 1.5 28 km S of Segundo, Colorado
  15. 1.5 29 km SSW of Segundo, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.3 on 2023-03-10 — it released about 5,600 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.