Earthquake · reviewed by a seismologist
M 2.5ml
12 km SE of Silverton, Colorado
- When
- Magnitude
- M 2.5 (ml)
- Depth
- 5.0 km below the surface
- Felt
- no reports yet
- Nearest
- San Juan County, 11 km WNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 86 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
How big was it?
This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
- Magna, Utah 2020 M 5.7 63,000× the energy of this one
- Around the size people start to feel M 3.0 5.6× the energy of this one
- This earthquake M 2.5 about 170 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 37.7441, -107.5509. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| San Juan County, CO | 11 km (7 mi) | ESE of here | earthquakes near San Juan County |
| Hinsdale County, CO | 16 km (10 mi) | WSW of here | earthquakes near Hinsdale County |
| Ouray County, CO | 50 km (31 mi) | SSE of here | earthquakes near Ouray County |
| Mineral County, CO | 53 km (33 mi) | WNW of here | earthquakes near Mineral County |
| La Plata County, CO | 57 km (35 mi) | NNE of here | earthquakes near La Plata County |
| Archuleta County, CO | 75 km (46 mi) | NW of here | earthquakes near Archuleta 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.