Earthquake · reviewed by a seismologist
M 2.1ml
6 km SW of Medicine Park, Oklahoma
- When
- Magnitude
- M 2.1 (ml)
- Depth
- 32 km below the surface
- Felt
- no reports yet
- Nearest
- Comanche County, 8 km ESE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1231 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 41 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 370,000× the energy of this one
- Magna, Utah 2020 M 5.7 260,000× the energy of this one
- Around the size people start to feel M 3.0 23× the energy of this one
- This earthquake M 2.1 about 41 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 34.6977, -98.5565. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Comanche County, OK | 8 km (5 mi) | WNW of here | earthquakes near Comanche County |
| Kiowa County, OK | 46 km (29 mi) | ESE of here | earthquakes near Kiowa County |
| Cotton County, OK | 48 km (30 mi) | NNW of here | earthquakes near Cotton County |
| Tillman County, OK | 50 km (31 mi) | NE of here | earthquakes near Tillman County |
| Caddo County, OK | 55 km (34 mi) | SSW of here | earthquakes near Caddo County |
| Stephens County, OK | 69 km (43 mi) | WNW of here | earthquakes near Stephens County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
9 earthquakes have been recorded within 50 km since this one.
- 1.5 3 km NNE of Cooperton, Oklahoma
- 1.5 6 km NW of Medicine Park, Oklahoma
- 1.6 4 km N of Cooperton, Oklahoma
- 1.6 6 km NE of Cooperton, Oklahoma
- 1.6 7 km NNE of Cooperton, Oklahoma
- 1.8 4 km NE of Medicine Park, Oklahoma
- 1.5 3 km NE of Medicine Park, Oklahoma
- 1.5 5 km E of Medicine Park, Oklahoma
- 2.1 8 km SSW of Roosevelt, 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.