QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

Oklahoma

· 7.0 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 16 kmGarfield County 30 kmAlfalfa County 52 kmNoble County 54 kmKay County 57 kmHarper County 66 kmSumner County 69 kmKingfisher County 80 kmMajor 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 2.7 (ml)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Grant County, 16 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3671 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 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 36.6485, -97.7445. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, OK 16 km (10 mi) SSE of here earthquakes near Grant County
Garfield County, OK 30 km (19 mi) N of here earthquakes near Garfield County
Alfalfa County, OK 52 km (33 mi) E of here earthquakes near Alfalfa County
Noble County, OK 54 km (34 mi) WNW of here earthquakes near Noble County
Kay County, OK 57 km (35 mi) WSW of here earthquakes near Kay County
Harper County, KS 66 km (41 mi) SSE of here earthquakes near Harper County

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

Aftershocks so far

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

  1. 2.8 4 km W of Lucien, Oklahoma
  2. 2.5 5 km W of Lucien, Oklahoma
  3. 3.2 6 km SE of Nescatunga, Oklahoma
  4. 2.9 6 km E of Nescatunga, Oklahoma
  5. 3.0 7 km E of Nescatunga, Oklahoma
  6. 2.6 6 km E of Nescatunga, Oklahoma
  7. 2.9 6 km E of Nescatunga, Oklahoma
  8. 2.4 3 km ESE of Covington, Oklahoma
  9. 2.9 6 km E of Nescatunga, Oklahoma
  10. 1.8 9 km SE of Bluff City, Kansas
  11. 2.3 9 km SE of Bluff City, Kansas
  12. 2.8 5 km ESE of Douglas, Oklahoma
  13. 2.7 7 km WNW of Jet, Oklahoma
  14. 2.5 9 km ESE of Jefferson, Oklahoma
  15. 2.6 5 km WNW of Lucien, 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.