QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9mb_lg

6 km SW of Kit Carson, Colorado

· 5.0 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cheyenne County 24 kmKiowa County 37 kmLincoln County 66 kmKit Carson County 68 kmBent County 90 kmProwers County 93 kmGreeley County 93 kmCrowley County 94 kmWallace 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 1.9 (mb_lg)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Cheyenne County, 24 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1133 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 38.7188, -102.8332. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cheyenne County, CO 24 km (15 mi) WSW of here earthquakes near Cheyenne County
Kiowa County, CO 37 km (23 mi) N of here earthquakes near Kiowa County
Lincoln County, CO 66 km (41 mi) ESE of here earthquakes near Lincoln County
Kit Carson County, CO 68 km (42 mi) SSW of here earthquakes near Kit Carson County
Bent County, CO 90 km (56 mi) NNE of here earthquakes near Bent County
Prowers County, CO 93 km (58 mi) NNW of here earthquakes near Prowers County

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

Aftershocks so far

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

  1. 1.8 6 km SW of Eads, Colorado
  2. 1.6 12 km ESE of Eads, Colorado
  3. 2.4 18 km NW of Eads, 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.