QuakeIndex

Earthquake · reviewed by a seismologist

M 4.1mwr

43 km NW of Parachute, Colorado

· 6.0 km deep · released about 21 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rio Blanco County 30 kmGarfield County 44 kmMesa County 81 kmMoffat County 97 kmUintah County 105 kmDelta County 109 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 4.1 (mwr)
Depth
6.0 km below the surface
Felt
182 reports · strongest reported intensity IV
Measured shaking
intensity V (ShakeMap)
USGS impact alert
green
Nearest
Rio Blanco County, 30 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1579 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 182 people have reported feeling it to USGS.

How big was it?

This earthquake released about 21 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 7,900× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 350× the energy of this one
  3. Magna, Utah 2020 M 5.7 250× the energy of this one
  4. This earthquake M 4.1 about 21 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 45× more

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 39.7504, -108.3896. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rio Blanco County, CO 30 km (18 mi) SSW of here earthquakes near Rio Blanco County
Garfield County, CO 44 km (28 mi) WNW of here earthquakes near Garfield County
Mesa County, CO 81 km (51 mi) N of here earthquakes near Mesa County
Moffat County, CO 97 km (60 mi) S of here earthquakes near Moffat County
Uintah County, UT 105 km (65 mi) ESE of here earthquakes near Uintah County
Delta County, CO 109 km (68 mi) NNW of here earthquakes near Delta County

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

Aftershocks so far

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

  1. 2.8 29 km WNW of De Beque, Colorado
  2. 1.7 24 km NNE of Loma, Colorado
  3. 2.0 28 km ESE of Rangely, Colorado
  4. 2.5 Colorado
  5. 1.5 28 km NW of De Beque, Colorado
  6. 1.7 11 km NE of Battlement Mesa, Colorado
  7. 1.6 35 km NNE of Loma, Colorado
  8. 3.0 25 km SSW of Rangely, Colorado
  9. 2.7 26 km NNE of Loma, Colorado
  10. 2.6 28 km NNE of Fruita, Colorado
  11. 2.6 24 km NNW of Parachute, Colorado
  12. 2.7 24 km NW of Rifle, Colorado
  13. 2.4 23 km NNW of Parachute, Colorado
  14. 3.4 44 km NW of Parachute, Colorado
  15. 2.8 44 km NW of Parachute, 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.