QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

40 km W of Maybell, Colorado

Yes. A magnitude 1.7 earthquake was recorded 40 km W of Maybell, Colorado, at 6:50 pm MDT on 25 June 2020 (00:50 UTC), 5.0 km deep.

· 5.0 km deep · released about 11 lb of TNT

10 km30 km60 km120 km N Moffat County 29 kmRio Blanco County 73 kmDaggett County 87 kmUintah County 95 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
Moffat County, 29 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2258 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 11 km (7 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 40.5722, -108.5604. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Moffat County, CO 29 km (18 mi) E earthquakes near Moffat County
Rio Blanco County, CO 73 km (46 mi) SSE earthquakes near Rio Blanco County
Daggett County, UT 87 km (54 mi) WNW earthquakes near Daggett County
Uintah County, UT 95 km (59 mi) WSW earthquakes near Uintah County
Garfield County, CO 122 km (76 mi) SSE earthquakes near Garfield County

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

Aftershocks so far

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

  1. 2.2 19 km WNW of Maybell, Colorado
  2. 2.2 29 km NNW of Maybell, Colorado
  3. 2.7 54 km E of Dutch John, Utah
  4. 2.4 7 km SSE of Maybell, Colorado
  5. 1.6 39 km NNE of Rangely, Colorado
  6. 2.1 47 km E of Dutch John, Utah

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.