Earthquake · reviewed by a seismologist
M 2.2md
10 km WSW of Center Ridge, Arkansas
- When
- Magnitude
- M 2.2 (md)
- Depth
- 11 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Conway County, 7 km SSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 755 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.
How big was it?
This earthquake released about 56 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 270,000× the energy of this one
- Magna, Utah 2020 M 5.7 190,000× the energy of this one
- Around the size people start to feel M 3.0 17× the energy of this one
- This earthquake M 2.2 about 56 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 35.3240, -92.6602. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Conway County, AR | 7 km (4 mi) | NNE of here | earthquakes near Conway County |
| Van Buren County, AR | 32 km (20 mi) | SSW of here | earthquakes near Van Buren County |
| Faulkner County, AR | 35 km (22 mi) | NW of here | earthquakes near Faulkner County |
| Pope County, AR | 36 km (23 mi) | ESE of here | earthquakes near Pope County |
| Perry County, AR | 48 km (30 mi) | NNE of here | earthquakes near Perry County |
| Searcy County, AR | 64 km (40 mi) | S of here | earthquakes near Searcy County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
8 earthquakes have been recorded within 50 km since this one.
- 2.0 17 km NNE of Hector, Arkansas
- 2.0 4 km SSE of Hector, Arkansas
- 2.3 3 km NW of Mount Vernon, Arkansas
- 2.3 3 km NE of Greenbrier, Arkansas
- 2.0 3 km SSE of Guy, Arkansas
- 2.0 1 km SW of Pottsville, Arkansas
- 2.4 11 km W of Clinton, Arkansas
- 1.8 2 km WNW of Enola, Arkansas
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.