QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Redlands, CO

No earthquake was likely felt in Redlands in the 24 hours to 6:52 pm MST (01:52 UTC). The last one was M 5.0, 762 km (474 mi) ESE, at 4:21 am MDT on 23 July 2026, estimated intensity II (weak) in town; 499 felt reports to USGS. Every earthquake near Redlands

This page: a magnitude 1.5 earthquake was recorded 20 km (12 mi) west-southwest of Redlands, CO, at 9:49 am MST on 26 January 2020 (16:49 UTC), 5.0 km deep.

USGS: 19 km WSW of Redlands, Colorado

25 km (16 mi) WSW of Grand Junction, CO

9:49 am MST, Jan 26, 2020 · · 5.0 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Mesa County 32 kmGrand County 64 kmMontrose County 81 kmDelta County 84 kmGarfield County 104 kmSan Miguel County 114 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
9:49 am MST on 26 January 2020 ()
Where
20 km (12 mi) west-southwest of Redlands, CO · earthquakes near Redlands
Magnitude
M 1.5 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Mesa County, 32 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2405 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 9 km (6 mi) from the epicentre. In Redlands, 20 km away, the estimate is intensity II (weak). 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.

Earthquakes near other towns within 30 km: Fruita, Loma, Grand Junction, Orchard Mesa.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 38.9857, -108.8284. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mesa County, CO 32 km (20 mi) E earthquakes near Mesa County
Grand County, UT 64 km (40 mi) W earthquakes near Grand County
Montrose County, CO 81 km (50 mi) SE earthquakes near Montrose County
Delta County, CO 84 km (52 mi) E earthquakes near Delta County
Garfield County, CO 104 km (65 mi) NE earthquakes near Garfield County
San Miguel County, CO 114 km (71 mi) SSE earthquakes near San Miguel County

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

Aftershocks so far

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

  1. 2.0 14 km NE of Fruita, Colorado
  2. 2.3 35 km SW of Loma, Colorado
  3. 1.8 35 km WSW of Loma, Colorado
  4. 3.2 34 km W of Delta, Colorado
  5. 1.9 19 km SSE of Orchard Mesa, Colorado
  6. 1.7 24 km NNE of Loma, Colorado
  7. 1.9 34 km W of Delta, Colorado
  8. 1.7 Utah
  9. 2.1 28 km NNE of Castle Valley, Utah
  10. 1.9 28 km NNE of Castle Valley, Utah
  11. 1.7 27 km NNE of Castle Valley, Utah
  12. 1.6 34 km E of Thompson Springs, Utah
  13. 1.8 27 km NNE of Castle Valley, Utah
  14. 1.6 28 km NNE of Castle Valley, Utah
  15. 1.8 27 km NNE of Castle Valley, 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.