QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

10 km WNW of Okeene, Oklahoma

· 5.3 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Major County 21 kmBlaine County 30 kmKingfisher County 49 kmDewey County 56 kmGarfield County 63 kmAlfalfa County 66 kmCuster County 75 kmWoods County 76 kmCanadian County 78 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 2.3 (ml)
Depth
5.3 km below the surface
Felt
4 reports · strongest reported intensity II
Nearest
Major County, 21 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1510 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 74 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.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 36.1432, -98.4292. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Major County, OK 21 km (13 mi) SSE of here earthquakes near Major County
Blaine County, OK 30 km (18 mi) N of here earthquakes near Blaine County
Kingfisher County, OK 49 km (31 mi) WNW of here earthquakes near Kingfisher County
Dewey County, OK 56 km (35 mi) ENE of here earthquakes near Dewey County
Garfield County, OK 63 km (39 mi) WSW of here earthquakes near Garfield County
Alfalfa County, OK 66 km (41 mi) S of here earthquakes near Alfalfa County

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

Aftershocks so far

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

  1. 3.1 2 km ESE of Aline, Oklahoma
  2. 1.8 17 km SE of Waynoka, Oklahoma
  3. 2.0 6 km WSW of Aline, Oklahoma
  4. 2.3 17 km SE of Waynoka, Oklahoma
  5. 1.8 17 km SE of Waynoka, Oklahoma
  6. 1.6 16 km SE of Waynoka, Oklahoma
  7. 2.5 2 km ESE of Aline, Oklahoma
  8. 2.6 7 km N of Ames, Oklahoma
  9. 2.2 6 km WSW of Helena, Oklahoma
  10. 1.5 16 km ESE of Quinlan, Oklahoma
  11. 1.9 Oklahoma
  12. 1.5 6 km W of Longdale, Oklahoma
  13. 2.3 3 km SE of Fairview, Oklahoma
  14. 2.0 3 km SE of Fairview, Oklahoma
  15. 1.5 3 km NNE of Okeene, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.1 on 2016-02-13 — it released about 18,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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