QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

44 km NW of Parachute, Colorado

· 1.9 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rio Blanco County 33 kmGarfield County 47 kmMesa County 79 kmMoffat County 100 kmUintah County 103 kmDelta County 108 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 2.8 (ml)
Depth
1.9 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Rio Blanco County, 33 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2887 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 39.7293, -108.4272. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rio Blanco County, CO 33 km (21 mi) SW of here earthquakes near Rio Blanco County
Garfield County, CO 47 km (29 mi) WNW of here earthquakes near Garfield County
Mesa County, CO 79 km (49 mi) N of here earthquakes near Mesa County
Moffat County, CO 100 km (62 mi) S of here earthquakes near Moffat County
Uintah County, UT 103 km (64 mi) ESE of here earthquakes near Uintah County
Delta County, CO 108 km (67 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 22 km NNE of Loma, Colorado
  8. 1.6 35 km NNE of Loma, Colorado
  9. 3.0 25 km SSW of Rangely, Colorado
  10. 2.7 26 km NNE of Loma, Colorado
  11. 2.6 28 km NNE of Fruita, Colorado
  12. 2.6 24 km NNW of Parachute, Colorado
  13. 2.7 24 km NW of Rifle, Colorado
  14. 2.4 23 km NNW of Parachute, Colorado
  15. 3.4 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.1 on 2018-08-24 — it released about 89 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.