QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

17 km NNE of Hoehne, Colorado

· 5.0 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Las Animas County 29 kmHuerfano County 61 kmOtero County 74 kmPueblo County 82 kmColfax County 95 kmCostilla County 98 kmCrowley County 109 kmCuster County 117 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 1.6 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Las Animas County, 29 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1667 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 37.4334, -104.3405. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Las Animas County, CO 29 km (18 mi) WNW of here earthquakes near Las Animas County
Huerfano County, CO 61 km (38 mi) ESE of here earthquakes near Huerfano County
Otero County, CO 74 km (46 mi) SW of here earthquakes near Otero County
Pueblo County, CO 82 km (51 mi) S of here earthquakes near Pueblo County
Colfax County, NM 95 km (59 mi) NNE of here earthquakes near Colfax County
Costilla County, CO 98 km (61 mi) E of here earthquakes near Costilla County

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

Aftershocks so far

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

  1. 1.7 6 km NNE of Segundo, Colorado
  2. 1.8 8 km N of Segundo, Colorado
  3. 3.8 4 km WNW of Hoehne, Colorado
  4. 2.9 8 km N of Segundo, Colorado
  5. 2.2 8 km N of Segundo, Colorado
  6. 1.5 9 km N of Segundo, Colorado
  7. 1.6 10 km N of Segundo, Colorado
  8. 1.5 Colorado
  9. 3.2 6 km NNW of Segundo, Colorado
  10. 1.5 8 km N of Segundo, Colorado
  11. 1.8 11 km NNW of Segundo, Colorado
  12. 2.4 8 km N of Segundo, Colorado
  13. 1.6 8 km NNW of Segundo, Colorado
  14. 1.9 10 km NNW of Segundo, Colorado
  15. 1.6 8 km NNE 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 4.0 on 2017-12-30 — it released about 4,000 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.