QuakeIndex

rock burst · reviewed by a seismologist

M 2.4ml

Colorado

· 1.0 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Routt County 2 kmJackson County 61 kmGrand County 85 kmEagle County 98 kmMoffat County 104 kmRio Blanco County 116 kmSummit County 120 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 2.4 (ml)
Depth
1.0 km below the surface
Felt
no reports yet
Nearest
Routt County, 2 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2705 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

USGS catalogues this as rock burst, not an earthquake.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 40.4734, -107.0010. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Routt County, CO 2 km (1 mi) SW of here earthquakes near Routt County
Jackson County, CO 61 km (38 mi) WSW of here earthquakes near Jackson County
Grand County, CO 85 km (53 mi) WNW of here earthquakes near Grand County
Eagle County, CO 98 km (61 mi) NNW of here earthquakes near Eagle County
Moffat County, CO 104 km (65 mi) E of here earthquakes near Moffat County
Rio Blanco County, CO 116 km (72 mi) ENE 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

13 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. 2.3 13 km NW of Steamboat Springs, Colorado
  5. 2.0 16 km WNW of Steamboat Springs, Colorado
  6. 3.1 21 km NW of Steamboat Springs, Colorado
  7. 1.7 26 km W of Walden, Colorado
  8. 1.5 37 km NNW of Steamboat Springs, Colorado
  9. 1.5 15 km WNW of Steamboat Springs, Colorado
  10. 1.9 42 km NNW of Steamboat Springs, Colorado
  11. 1.5 42 km SSW of Encampment, Wyoming
  12. 2.5 5 km SSE of Craig, Colorado
  13. 2.0 22 km WSW of Walden, 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.