QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

9 km SSW of Garfield, Colorado

· 6.2 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Chaffee County 30 kmSaguache County 49 kmGunnison County 68 kmFremont County 78 kmLake County 82 kmPark County 89 kmCuster County 92 kmPitkin County 98 kmTeller County 108 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 1.5 (ml)
Depth
6.2 km below the surface
Felt
no reports yet
Nearest
Chaffee County, 30 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1758 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 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.

Where

Epicentre 38.4685, -106.3166. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Chaffee County, CO 30 km (18 mi) S of here earthquakes near Chaffee County
Saguache County, CO 49 km (31 mi) N of here earthquakes near Saguache County
Gunnison County, CO 68 km (42 mi) ESE of here earthquakes near Gunnison County
Fremont County, CO 78 km (48 mi) W of here earthquakes near Fremont County
Lake County, CO 82 km (51 mi) S of here earthquakes near Lake County
Park County, CO 89 km (55 mi) SW of here earthquakes near Park County

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

Aftershocks so far

1 earthquake has been recorded within 50 km since this one.

  1. 2.4 17 km NE of Saguache, 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.