Earthquake · reviewed by a seismologist
M 2.2ml
26 km NE of Buffalo, Oklahoma
- When
- Magnitude
- M 2.2 (ml)
- Depth
- 6.9 km below the surface
- Felt
- no reports yet
- Nearest
- Comanche County, 26 km NNE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2428 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 52 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 5.8 290,000× the energy of this one
- Magna, Utah 2020 M 5.7 200,000× the energy of this one
- Around the size people start to feel M 3.0 18× the energy of this one
- This earthquake M 2.2 about 52 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 36.9742, -99.3877. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Comanche County, KS | 26 km (16 mi) | SSW of here | earthquakes near Comanche County |
| Harper County, OK | 31 km (19 mi) | NE of here | earthquakes near Harper County |
| Clark County, KS | 48 km (30 mi) | SE of here | earthquakes near Clark County |
| Woods County, OK | 54 km (34 mi) | WNW of here | earthquakes near Woods County |
| Woodward County, OK | 62 km (38 mi) | N of here | earthquakes near Woodward County |
| Kiowa County, KS | 66 km (41 mi) | S of here | earthquakes near Kiowa 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.
- 1.8 10 km NNE of May, Oklahoma
- 1.6 15 km SW of Freedom, Oklahoma
- 1.7 15 km S of Freedom, Oklahoma
- 1.9 23 km WSW of Freedom, Oklahoma
- 1.6 14 km S of Freedom, Oklahoma
- 1.6 17 km ESE of Buffalo, Oklahoma
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.