QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

4 km WNW of Minco, Oklahoma

· 6.9 km deep · released about 13 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 24 kmGrady County 36 kmCaddo County 40 kmOklahoma County 58 kmMcClain County 60 kmCleveland County 62 kmKingfisher County 69 kmBlaine County 73 kmLogan 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
6.9 km below the surface
Felt
no reports yet
Nearest
Canadian County, 24 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2232 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 13 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 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 810,000× the energy of this one
  3. Around the size people start to feel M 3.0 72× the energy of this one
  4. This earthquake M 1.8 about 13 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 35.3313, -97.9863. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Canadian County, OK 24 km (15 mi) S of here earthquakes near Canadian County
Grady County, OK 36 km (22 mi) NNW of here earthquakes near Grady County
Caddo County, OK 40 km (25 mi) ENE of here earthquakes near Caddo County
Oklahoma County, OK 58 km (36 mi) WSW of here earthquakes near Oklahoma County
McClain County, OK 60 km (37 mi) NW of here earthquakes near McClain County
Cleveland County, OK 62 km (38 mi) WNW of here earthquakes near Cleveland County

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

Aftershocks so far

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

  1. 2.0 6 km SSW of Dibble, Oklahoma
  2. 1.9 6 km SW of Dibble, Oklahoma
  3. 2.0 5 km SSW of Dibble, Oklahoma
  4. 2.7 5 km SW of Dibble, Oklahoma
  5. 2.2 6 km WSW of Dibble, Oklahoma
  6. 1.9 5 km WSW of Dibble, Oklahoma
  7. 1.9 8 km NE of Union City, Oklahoma
  8. 1.5 6 km NE of Union City, Oklahoma
  9. 2.2 5 km E of Union City, Oklahoma
  10. 1.5 4 km E of Union City, Oklahoma
  11. 1.6 5 km E of Union City, Oklahoma
  12. 2.0 4 km E of Union City, Oklahoma
  13. 2.3 16 km ENE of Binger, Oklahoma
  14. 2.0 8 km ESE of Chickasha, Oklahoma
  15. 1.5 2 km SE of Chickasha, 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.