QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

26 km W of Walden, Colorado

· 4.2 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jackson County 23 kmRoutt County 40 kmGrand County 76 kmLarimer County 94 kmCarbon County 116 kmEagle County 118 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
4.2 km below the surface
Felt
no reports yet
Nearest
Jackson County, 23 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1463 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 40.6878, -106.5979. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jackson County, CO 23 km (14 mi) W of here earthquakes near Jackson County
Routt County, CO 40 km (25 mi) NE of here earthquakes near Routt County
Grand County, CO 76 km (47 mi) NNW of here earthquakes near Grand County
Larimer County, CO 94 km (58 mi) W of here earthquakes near Larimer County
Carbon County, WY 116 km (72 mi) SSE of here earthquakes near Carbon County
Eagle County, CO 118 km (73 mi) N of here earthquakes near Eagle County

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

Aftershocks so far

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

  1. 2.7 15 km SSW of Walden, Colorado
  2. 1.7 11 km SSW of Walden, Colorado
  3. 2.3 13 km NW of Steamboat Springs, Colorado
  4. 2.0 16 km WNW of Steamboat Springs, Colorado
  5. 3.1 21 km NW of Steamboat Springs, 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.