Earthquake · reviewed by a seismologist
M 3.1ml
14 km NNW of Rico, Colorado
- When
- Magnitude
- M 3.1 (ml)
- Depth
- 5.0 km below the surface
- Felt
- 3 reports · strongest reported intensity III
- Nearest
- San Miguel County, 36 km NW
- 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. 3 people have reported feeling it to USGS.
How big was it?
This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 250,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
- Magna, Utah 2020 M 5.7 7,900× the energy of this one
- This earthquake M 3.1 about 1,300 lb of TNT
- Around the size people start to feel M 3.0 this one released 1.4× more
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 37.8081, -108.1057. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| San Miguel County, CO | 36 km (22 mi) | SE of here | earthquakes near San Miguel County |
| Dolores County, CO | 36 km (22 mi) | ENE of here | earthquakes near Dolores County |
| San Juan County, CO | 38 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 | 62 km (39 mi) | NNW of here | earthquakes near La Plata County |
| Hinsdale County, CO | 63 km (39 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
9 earthquakes have been recorded within 50 km since this one.
- 2.6 15 km SSW of Sawpit, Colorado
- 2.0 6 km NW of Rico, Colorado
- 1.8 16 km WSW of Loghill Village, Colorado
- 2.1 14 km S of Ophir, Colorado
- 2.2 16 km S of Ophir, Colorado
- 3.6 16 km S of Ophir, Colorado
- 2.2 Colorado
- 1.7 4 km WSW of Silverton, Colorado
- 1.6 19 km WNW 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
- 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.