QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5mb_lg

5 km SW of Kremlin, Oklahoma

· 3.8 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garfield County 17 kmGrant County 32 kmAlfalfa County 47 kmNoble County 59 kmKingfisher County 63 kmMajor County 64 kmKay County 73 kmLogan County 77 kmHarper County 77 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 2.5 (mb_lg)
Depth
3.8 km below the surface
Felt
no reports yet
Nearest
Garfield County, 17 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3754 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 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 36.5128, -97.8754. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garfield County, OK 17 km (10 mi) NNW of here earthquakes near Garfield County
Grant County, OK 32 km (20 mi) SSW of here earthquakes near Grant County
Alfalfa County, OK 47 km (29 mi) ESE of here earthquakes near Alfalfa County
Noble County, OK 59 km (37 mi) WNW of here earthquakes near Noble County
Kingfisher County, OK 63 km (39 mi) N of here earthquakes near Kingfisher County
Major County, OK 64 km (40 mi) ENE of here earthquakes near Major County

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

Aftershocks so far

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

  1. 3.1 8 km W of Deer Creek, Oklahoma
  2. 2.6 4 km SSE of Covington, Oklahoma
  3. 2.8 5 km NNE of Ames, Oklahoma
  4. 2.7 8 km WNW of Jet, Oklahoma
  5. 2.7 2 km NNW of Lamont, Oklahoma
  6. 2.7 8 km ESE of Pond Creek, Oklahoma
  7. 2.7 7 km WNW of Jet, Oklahoma
  8. 3.5 7 km WNW of Jet, Oklahoma
  9. 2.3 10 km N of Nescatunga, Oklahoma
  10. 2.6 5 km W of Lucien, Oklahoma
  11. 2.6 13 km N of Nescatunga, Oklahoma
  12. 2.7 12 km N of Nescatunga, Oklahoma
  13. 3.3 13 km N of Nescatunga, Oklahoma
  14. 2.6 12 km ESE of Byron, Oklahoma
  15. 3.0 5 km W of Medford, 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.