QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

12 km WNW of Stillwater, Oklahoma

· 22 km deep · released about 6.2 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Payne County 21 kmNoble County 26 kmLogan County 35 kmPawnee County 48 kmLincoln County 57 kmGarfield County 59 kmOklahoma County 69 kmKingfisher County 71 kmKay 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 1.5 (ml)
Depth
22 km below the surface
Felt
no reports yet
Nearest
Payne County, 21 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 447 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.5 about 6.2 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 36.1532, -97.1917. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Payne County, OK 21 km (13 mi) WNW of here earthquakes near Payne County
Noble County, OK 26 km (16 mi) S of here earthquakes near Noble County
Logan County, OK 35 km (22 mi) NE of here earthquakes near Logan County
Pawnee County, OK 48 km (30 mi) WSW of here earthquakes near Pawnee County
Lincoln County, OK 57 km (36 mi) NNW of here earthquakes near Lincoln County
Garfield County, OK 59 km (37 mi) ESE of here earthquakes near Garfield County

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

Aftershocks so far

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

  1. 0.8 2 km SE of Carney, Oklahoma
  2. 2.2 6 km NNW of Red Rock, Oklahoma
  3. 1.6 5 km WNW of Lucien, Oklahoma
  4. 2.4 15 km NW of Pawnee, Oklahoma
  5. 1.6 6 km WSW of Marshall, Oklahoma
  6. 1.9 5 km S of Lucien, Oklahoma
  7. 2.7 7 km S of Perry, Oklahoma
  8. 1.8 16 km NW of Pawnee, Oklahoma
  9. 1.5 12 km NW of Pawnee, Oklahoma
  10. 2.2 12 km NW of Pawnee, Oklahoma
  11. 2.9 10 km N of Stillwater, Oklahoma
  12. 1.5 10 km E of Red Rock, Oklahoma
  13. 2.5 5 km NE of Agra, Oklahoma
  14. 1.6 5 km NW of Mulhall, Oklahoma
  15. 1.6 3 km S of Mulhall, 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 5.8 on 2016-09-03 — it released about 2,500,000 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.