QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

4 km SW of Perry, Oklahoma

· 5.3 km deep · released about 680 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Noble County 15 kmPayne County 37 kmLogan County 41 kmGarfield County 44 kmPawnee County 56 kmKay County 63 kmKingfisher County 65 kmGrant County 72 kmLincoln County 74 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 2.9 (ml)
Depth
5.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Noble County, 15 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3677 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 36.2655, -97.3217. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Noble County, OK 15 km (10 mi) SSW of here earthquakes near Noble County
Payne County, OK 37 km (23 mi) NW of here earthquakes near Payne County
Logan County, OK 41 km (25 mi) NNE of here earthquakes near Logan County
Garfield County, OK 44 km (27 mi) ESE of here earthquakes near Garfield County
Pawnee County, OK 56 km (35 mi) W of here earthquakes near Pawnee County
Kay County, OK 63 km (39 mi) SSW of here earthquakes near Kay County

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

Aftershocks so far

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

  1. 2.5 9 km W of Quay, Oklahoma
  2. 2.8 5 km ESE of Douglas, Oklahoma
  3. 2.6 Oklahoma
  4. 2.8 13 km NNW of Pawnee, Oklahoma
  5. 3.6 8 km NNE of Marshall, Oklahoma
  6. 2.7 1 km NE of Meridian, Oklahoma
  7. 2.6 1 km NE of Meridian, Oklahoma
  8. 2.5 3 km WNW of Stillwater, Oklahoma
  9. 2.6 5 km WNW of Lucien, Oklahoma
  10. 2.5 4 km WNW of Stillwater, Oklahoma
  11. 2.6 Oklahoma
  12. 3.0 3 km WNW of Stillwater, Oklahoma
  13. 2.5 5 km W of Lucien, Oklahoma
  14. 2.6 7 km NNE of Guthrie, Oklahoma
  15. 2.4 8 km S of Perry, 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 4.2 on 2016-03-29 — it released about 89 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.