QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

5 km SE of Stillwater, Oklahoma

· 5.6 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Payne County 3 kmPawnee County 38 kmNoble County 39 kmLogan County 44 kmLincoln County 44 kmCreek County 60 kmOklahoma County 69 kmGarfield County 77 kmOsage County 80 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 2.8 (ml)
Depth
5.6 km below the surface
Felt
11 reports · strongest reported intensity III
Nearest
Payne County, 3 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2384 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 11 people have reported feeling it to USGS.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 36.0883, -97.0091. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Payne County, OK 3 km (2 mi) WNW of here earthquakes near Payne County
Pawnee County, OK 38 km (23 mi) SW of here earthquakes near Pawnee County
Noble County, OK 39 km (24 mi) SSE of here earthquakes near Noble County
Logan County, OK 44 km (27 mi) ENE of here earthquakes near Logan County
Lincoln County, OK 44 km (28 mi) NNW of here earthquakes near Lincoln County
Creek County, OK 60 km (37 mi) WNW of here earthquakes near Creek County

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

Aftershocks so far

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

  1. 3.0 14 km WSW of Ralston, Oklahoma
  2. 2.5 10 km NNW of Arcadia, Oklahoma
  3. 3.3 4 km SW of Yale, Oklahoma
  4. 2.6 5 km SSE of Cushing, Oklahoma
  5. 2.6 5 km W of Quay, Oklahoma
  6. 2.7 5 km W of Quay, Oklahoma
  7. 2.1 7 km S of Perry, Oklahoma
  8. 2.6 9 km NNE of Guthrie, Oklahoma
  9. 2.5 9 km W of Quay, Oklahoma
  10. 3.0 8 km W of Quay, Oklahoma
  11. 2.7 2 km NNW of Maramec, Oklahoma
  12. 2.8 8 km S of Perry, Oklahoma
  13. 2.6 1 km E of Luther, Oklahoma
  14. 2.6 2 km NE of Luther, Oklahoma
  15. 3.0 5 km S of Cushing, 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.