QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

8 km ESE of Hunter, Oklahoma

· 9.1 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garfield County 26 kmGrant County 34 kmNoble County 34 kmKay County 49 kmLogan County 70 kmAlfalfa County 71 kmKingfisher County 73 kmPayne County 74 kmSumner 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 2.8 (ml)
Depth
9.1 km below the surface
Felt
no reports yet
Nearest
Garfield County, 26 km SW
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.

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 36.5371, -97.5706. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garfield County, OK 26 km (16 mi) NE of here earthquakes near Garfield County
Grant County, OK 34 km (21 mi) SE of here earthquakes near Grant County
Noble County, OK 34 km (21 mi) WNW of here earthquakes near Noble County
Kay County, OK 49 km (30 mi) SW of here earthquakes near Kay County
Logan County, OK 70 km (44 mi) N of here earthquakes near Logan County
Alfalfa County, OK 71 km (44 mi) ESE of here earthquakes near Alfalfa County

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

Aftershocks so far

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

  1. 2.4 3 km ESE of Covington, Oklahoma
  2. 2.7 5 km NW of Orlando, Oklahoma
  3. 2.5 8 km W of Orlando, Oklahoma
  4. 2.8 5 km ESE of Douglas, Oklahoma
  5. 2.6 Oklahoma
  6. 3.6 8 km NNE of Marshall, Oklahoma
  7. 2.5 9 km ESE of Jefferson, Oklahoma
  8. 2.6 5 km WNW of Lucien, Oklahoma
  9. 2.5 7 km ESE of Medford, Oklahoma
  10. 2.0 6 km ENE of Renfrow, Oklahoma
  11. 2.5 5 km W of Lucien, Oklahoma
  12. 3.1 2 km WSW of Deer Creek, Oklahoma
  13. 2.4 8 km S of Perry, Oklahoma
  14. 3.6 9 km NW of Morrison, Oklahoma
  15. 2.8 10 km ESE of Jefferson, 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.