QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

14 km NNW of Rico, Colorado

· 5.0 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Dolores County 36 kmSan Miguel County 36 kmSan Juan County 39 kmOuray County 48 kmLa Plata County 63 kmHinsdale County 64 kmMontezuma County 67 kmMontrose County 68 kmMineral County 102 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 2.5 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Dolores County, 36 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3127 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 37.8070, -108.1112. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Dolores County, CO 36 km (22 mi) ENE of here earthquakes near Dolores County
San Miguel County, CO 36 km (22 mi) SE of here earthquakes near San Miguel County
San Juan County, CO 39 km (24 mi) W of here earthquakes near San Juan County
Ouray County, CO 48 km (30 mi) SW of here earthquakes near Ouray County
La Plata County, CO 63 km (39 mi) NNW of here earthquakes near La Plata County
Hinsdale County, CO 64 km (40 mi) W of here earthquakes near Hinsdale County

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

Aftershocks so far

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

  1. 2.6 15 km SSW of Sawpit, Colorado
  2. 2.0 6 km NW of Rico, Colorado
  3. 1.8 16 km WSW of Loghill Village, Colorado
  4. 2.1 14 km S of Ophir, Colorado
  5. 2.2 16 km S of Ophir, Colorado
  6. 3.6 16 km S of Ophir, Colorado
  7. 2.2 Colorado
  8. 1.7 4 km WSW of Silverton, Colorado
  9. 1.6 19 km WNW of Rico, Colorado
  10. 3.1 14 km NNW of Rico, 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.