QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Oklahoma

· 6.1 km deep · released about 17 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 9 kmKingfisher County 37 kmOklahoma County 49 kmBlaine County 52 kmLogan County 55 kmCaddo County 64 kmGrady County 67 kmCleveland County 73 kmMcClain County 81 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 1.8 (ml)
Depth
6.1 km below the surface
Felt
no reports yet
Nearest
Canadian County, 9 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1640 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 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× the energy of this one
  4. This earthquake M 1.8 about 17 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 35.6212, -97.9480. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 9 km (6 mi) NNE of here earthquakes near Canadian County
Kingfisher County, OK 37 km (23 mi) S of here earthquakes near Kingfisher County
Oklahoma County, OK 49 km (31 mi) W of here earthquakes near Oklahoma County
Blaine County, OK 52 km (32 mi) ESE of here earthquakes near Blaine County
Logan County, OK 55 km (34 mi) SW of here earthquakes near Logan County
Caddo County, OK 64 km (40 mi) NE of here earthquakes near Caddo County

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

Aftershocks so far

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

  1. 2.6 4 km SSE of Dover, Oklahoma
  2. 2.5 4 km SSE of Dover, Oklahoma
  3. 1.9 4 km S of Dover, Oklahoma
  4. 1.7 1 km NNW of Bridge Creek, Oklahoma
  5. 2.4 1 km NNW of Bridge Creek, Oklahoma
  6. 1.6 4 km SSE of Dover, Oklahoma
  7. 1.5 1 km N of Bridge Creek, Oklahoma
  8. 2.7 Oklahoma
  9. 2.0 1 km N of Bridge Creek, Oklahoma
  10. 2.4 5 km ENE of Minco, Oklahoma
  11. 1.6 4 km SSE of Dover, Oklahoma
  12. 1.5 2 km NNE of Bridge Creek, Oklahoma
  13. 1.6 2 km NE of Bridge Creek, Oklahoma
  14. 1.5 4 km SSE of Dover, Oklahoma
  15. 1.6 4 km SSE of Dover, 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 4.2 on 2016-01-01 — it released about 3,600 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.