QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

1 km SE of Pittsburg, Oklahoma

· 8.0 km deep · released about 13 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pittsburg County 26 kmAtoka County 39 kmCoal County 44 kmPushmataha County 53 kmHughes County 55 kmLatimer County 55 kmMcIntosh County 76 kmPontotoc County 78 kmChoctaw County 79 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
8.0 km below the surface
Felt
no reports yet
Nearest
Pittsburg County, 26 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 452 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 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 840,000× the energy of this one
  3. Around the size people start to feel M 3.0 75× 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 34.7013, -95.8348. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pittsburg County, OK 26 km (16 mi) SSW of here earthquakes near Pittsburg County
Atoka County, OK 39 km (24 mi) NNE of here earthquakes near Atoka County
Coal County, OK 44 km (27 mi) ENE of here earthquakes near Coal County
Pushmataha County, OK 53 km (33 mi) NW of here earthquakes near Pushmataha County
Hughes County, OK 55 km (34 mi) SE of here earthquakes near Hughes County
Latimer County, OK 55 km (34 mi) WSW of here earthquakes near Latimer County

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

Aftershocks so far

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

  1. 2.0 5 km NE of Wardville, Oklahoma
  2. 1.7 10 km NNW of Tuskahoma, Oklahoma
  3. 1.6 7 km WNW of Arpelar, Oklahoma
  4. 1.5 4 km NE of Wardville, Oklahoma
  5. 2.7 5 km NE of Wardville, Oklahoma
  6. 1.8 6 km NE of Wardville, Oklahoma
  7. 1.5 3 km ENE of Wardville, Oklahoma
  8. 1.7 4 km NE of Wardville, Oklahoma
  9. 1.9 4 km ENE of Wardville, Oklahoma
  10. 1.7 5 km NE of Wardville, Oklahoma
  11. 1.7 3 km NE of Wardville, Oklahoma
  12. 1.7 4 km ENE of Wardville, Oklahoma
  13. 2.4 4 km ENE of Wardville, Oklahoma
  14. 1.5 4 km NE of Wardville, Oklahoma
  15. 2.5 4 km ENE of Wardville, 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.