Earthquake · reviewed by a seismologist
M 1.6ml
23 km SSW of South Fork, Colorado
- When
- Magnitude
- M 1.6 (ml)
- Depth
- 5.0 km below the surface
- Felt
- no reports yet
- Nearest
- Rio Grande County, 22 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1905 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- This earthquake M 1.6 about 7.6 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 37.4637, -106.6974. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Rio Grande County, CO | 22 km (13 mi) | W of here | earthquakes near Rio Grande County |
| Mineral County, CO | 29 km (18 mi) | ESE of here | earthquakes near Mineral County |
| Archuleta County, CO | 43 km (27 mi) | NE of here | earthquakes near Archuleta County |
| Conejos County, CO | 54 km (33 mi) | WNW of here | earthquakes near Conejos County |
| Hinsdale County, CO | 72 km (45 mi) | ESE of here | earthquakes near Hinsdale County |
| Saguache County, CO | 75 km (47 mi) | SSW of here | earthquakes near Saguache 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.
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.