QuakeIndex

quarry blast · reviewed by a seismologist

M 1.6ml

8 km NE of Cooperton, Oklahoma

· 0.0 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kiowa County 16 kmComanche County 43 kmWashita County 43 kmCaddo County 47 kmTillman County 64 kmJackson County 67 kmGreer County 68 kmCuster County 81 kmCotton County 82 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 1.6 (ml)
Depth
0.0 km below the surface
Felt
no reports yet
Nearest
Kiowa County, 16 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1553 days ago

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

USGS catalogues this as quarry blast, not an earthquake.

How big was it?

This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 34.9333, -98.8100. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kiowa County, OK 16 km (10 mi) E of here earthquakes near Kiowa County
Comanche County, OK 43 km (27 mi) NW of here earthquakes near Comanche County
Washita County, OK 43 km (27 mi) SSE of here earthquakes near Washita County
Caddo County, OK 47 km (29 mi) WSW of here earthquakes near Caddo County
Tillman County, OK 64 km (39 mi) N of here earthquakes near Tillman County
Jackson County, OK 67 km (41 mi) NE of here earthquakes near Jackson County

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

Aftershocks so far

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

  1. 1.8 9 km NNE of Friendship, Oklahoma
  2. 1.5 3 km NNE of Cooperton, Oklahoma
  3. 1.5 6 km NW of Medicine Park, Oklahoma
  4. 1.6 4 km N of Cooperton, Oklahoma
  5. 1.6 6 km NE of Cooperton, Oklahoma
  6. 1.6 7 km NNE of Cooperton, Oklahoma
  7. 1.8 4 km NE of Medicine Park, Oklahoma
  8. 1.5 3 km NE of Medicine Park, Oklahoma
  9. 1.5 5 km E of Medicine Park, Oklahoma
  10. 2.1 8 km SSW of Roosevelt, Oklahoma
  11. 2.1 6 km SW of Medicine Park, Oklahoma
  12. 1.6 6 km NNE of Cooperton, Oklahoma
  13. 1.5 Oklahoma
  14. 2.8 1 km ESE of Medicine Park, Oklahoma
  15. 1.7 6 km NW of Cooperton, 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.