QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

10 km SE of Crystal, Colorado

· 5.0 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pitkin County 26 kmGunnison County 37 kmLake County 62 kmChaffee County 68 kmEagle County 75 kmDelta County 75 kmGarfield County 102 kmSummit County 102 kmPark County 113 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 1.9 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Pitkin County, 26 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2369 days ago

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

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 38.9987, -107.0140. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pitkin County, CO 26 km (16 mi) SSW of here earthquakes near Pitkin County
Gunnison County, CO 37 km (23 mi) N of here earthquakes near Gunnison County
Lake County, CO 62 km (38 mi) WSW of here earthquakes near Lake County
Chaffee County, CO 68 km (43 mi) WNW of here earthquakes near Chaffee County
Eagle County, CO 75 km (47 mi) SSW of here earthquakes near Eagle County
Delta County, CO 75 km (47 mi) ENE of here earthquakes near Delta County

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

Aftershocks so far

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

  1. 2.8 10 km NE of Redstone, Colorado
  2. 2.6 12 km S of Mulford, Colorado
  3. 1.9 6 km WNW of Snowmass Village, Colorado
  4. 1.5 13 km ENE of Paonia, Colorado
  5. 1.8 2 km NNW of El Jebel, Colorado
  6. 2.8 9 km E of Woody Creek, Colorado
  7. 2.0 6 km E of Basalt, Colorado
  8. 1.6 6 km E of Basalt, Colorado
  9. 1.5 5 km SSW of Carbondale, Colorado
  10. 1.9 11 km E of Paonia, Colorado
  11. 1.6 9 km ESE of Paonia, Colorado
  12. 2.4 9 km NW of Mount Crested Butte, 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.