Earthquake · reviewed by a seismologist
M 1.7ml
Earthquake near Carbondale, CO
USGS: 6 km NW of Marble, Colorado
- When
- 5:26 am MST on 20 January 2017 ()
- Where
- 33 km (20 mi) S of Carbondale, CO · earthquakes near Carbondale
- Magnitude
- M 1.7 (ml)
- Depth
- 5.0 km below the surface
- Felt
- no reports yet
- Nearest
- Pitkin County, 31 km ENE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3461 days ago
A magnitude 1.7 earthquake was recorded 33 km (20 mi) S of Carbondale, CO, at 5:26 am MST on 20 January 2017 (12:26 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Snowmass Village.
How big was it?
This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
- Around the size people start to feel M 3.0 89× the energy of this one
- This earthquake M 1.7 about 11 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 39.1114, -107.2511. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Pitkin County, CO | 31 km (19 mi) | ENE | earthquakes near Pitkin County |
| Gunnison County, CO | 52 km (32 mi) | SSE | earthquakes near Gunnison County |
| Delta County, CO | 60 km (37 mi) | WSW | earthquakes near Delta County |
| Eagle County, CO | 75 km (46 mi) | NE | earthquakes near Eagle County |
| Lake County, CO | 78 km (49 mi) | E | earthquakes near Lake County |
| Garfield County, CO | 78 km (49 mi) | NW | earthquakes near Garfield County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
28 earthquakes have been recorded within 50 km since this one.
- 2.8 10 km NE of Redstone, Colorado
- 2.6 12 km S of Mulford, Colorado
- 1.9 6 km WNW of Snowmass Village, Colorado
- 1.5 13 km ENE of Paonia, Colorado
- 1.8 2 km NNW of El Jebel, Colorado
- 2.8 9 km E of Woody Creek, Colorado
- 2.0 6 km E of Basalt, Colorado
- 1.6 6 km E of Basalt, Colorado
- 1.5 5 km SSW of Carbondale, Colorado
- 1.9 11 km E of Paonia, Colorado
- 1.6 9 km ESE of Paonia, Colorado
- 1.8 11 km NNE of Paonia, Colorado
- 2.4 9 km NW of Mount Crested Butte, Colorado
- 1.9 10 km SE of Crystal, Colorado
- 2.1 3 km NNW 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.