Earthquake · reviewed by a seismologist
M 2.3mb_lg
20 km WSW of Haswell, Colorado
- When
- Magnitude
- M 2.3 (mb_lg)
- Depth
- 5.0 km below the surface
- Felt
- no reports yet
- Nearest
- Crowley County, 35 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2416 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 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
- Magna, Utah 2020 M 5.7 130,000× the energy of this one
- Around the size people start to feel M 3.0 11× the energy of this one
- This earthquake M 2.3 about 85 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 38.3893, -103.3897. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Crowley County, CO | 35 km (22 mi) | ENE of here | earthquakes near Crowley County |
| Kiowa County, CO | 55 km (34 mi) | W of here | earthquakes near Kiowa County |
| Bent County, CO | 58 km (36 mi) | NNW of here | earthquakes near Bent County |
| Otero County, CO | 63 km (39 mi) | NNE of here | earthquakes near Otero County |
| Lincoln County, CO | 68 km (42 mi) | S of here | earthquakes near Lincoln County |
| Cheyenne County, CO | 85 km (53 mi) | SW of here | earthquakes near Cheyenne County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
6 earthquakes have been recorded within 50 km since this one.
- 2.4 18 km NW of Eads, Colorado
- 2.1 16 km WNW of Haswell, Colorado
- 2.2 15 km NW of Eads, Colorado
- 1.7 14 km E of Haswell, Colorado
- 2.5 23 km NE of Sugar City, Colorado
- 2.0 17 km NW of Eads, 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.