QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

15 km NW of Dotsero, Colorado

· 5.0 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Eagle County 44 kmPitkin County 64 kmGarfield County 65 kmRoutt County 82 kmSummit County 90 kmRio Blanco County 91 kmLake County 94 kmGrand County 99 kmDelta County 116 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 1.7 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Eagle County, 44 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1933 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 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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 39.7593, -107.1744. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Eagle County, CO 44 km (27 mi) WNW of here earthquakes near Eagle County
Pitkin County, CO 64 km (40 mi) NNW of here earthquakes near Pitkin County
Garfield County, CO 65 km (41 mi) ENE of here earthquakes near Garfield County
Routt County, CO 82 km (51 mi) S of here earthquakes near Routt County
Summit County, CO 90 km (56 mi) W of here earthquakes near Summit County
Rio Blanco County, CO 91 km (56 mi) ESE of here earthquakes near Rio Blanco County

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

Aftershocks so far

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

  1. 2.0 17 km WSW of Phippsburg, Colorado
  2. 1.9 26 km WSW of Yampa, Colorado
  3. 2.0 29 km WSW of Yampa, Colorado
  4. 2.2 10 km NW of Dotsero, Colorado
  5. 2.5 30 km NNW of Dotsero, Colorado
  6. 2.1 6 km NNW of Chacra, Colorado
  7. 2.5 22 km NNW of New Castle, Colorado
  8. 2.9 6 km NNE of Chacra, Colorado
  9. 2.5 7 km NNW of Chacra, Colorado
  10. 2.6 6 km NNW of Chacra, Colorado
  11. 2.9 8 km NNW of Chacra, Colorado
  12. 2.1 9 km NNE of New Castle, Colorado
  13. 2.5 6 km NNW of Gypsum, Colorado
  14. 1.8 2 km NNW of El Jebel, 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.