QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

4 km N of Velma, Oklahoma

· 19 km deep · released about 52 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Stephens County 17 kmGarvin County 41 kmCarter County 45 kmJefferson County 46 kmMurray County 55 kmMcClain County 61 kmGrady County 61 kmCotton County 68 kmLove County 72 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.2 (ml)
Depth
19 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Stephens County, 17 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1232 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 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.

  1. Mineral, Virginia 2011 M 5.8 290,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. 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 34.4965, -97.6740. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Stephens County, OK 17 km (10 mi) E of here earthquakes near Stephens County
Garvin County, OK 41 km (25 mi) SW of here earthquakes near Garvin County
Carter County, OK 45 km (28 mi) NW of here earthquakes near Carter County
Jefferson County, OK 46 km (29 mi) NNE of here earthquakes near Jefferson County
Murray County, OK 55 km (34 mi) W of here earthquakes near Murray County
McClain County, OK 61 km (38 mi) SSW of here earthquakes near McClain County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

59 earthquakes have been recorded within 50 km since this one.

  1. 1.6 0 km WNW of Elmore City, Oklahoma
  2. 1.6 Oklahoma
  3. 1.6 Oklahoma
  4. 1.9 9 km SE of Erin Springs, Oklahoma
  5. 1.7 7 km W of Davis, Oklahoma
  6. 1.7 8 km ESE of Erin Springs, Oklahoma
  7. 1.5 7 km N of Velma, Oklahoma
  8. 1.9 7 km NNW of Velma, Oklahoma
  9. 1.6 7 km NNW of Velma, Oklahoma
  10. 1.6 7 km NNW of Velma, Oklahoma
  11. 1.6 9 km ESE of Bray, Oklahoma
  12. 1.8 9 km SSW of Wynnewood, Oklahoma
  13. 1.9 10 km SE of Erin Springs, Oklahoma
  14. 2.1 8 km W of Davis, Oklahoma
  15. 1.6 10 km SE of Katie, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.