QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

7 km ESE of Arpelar, Oklahoma

· 4.0 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pittsburg County 13 kmHughes County 37 kmCoal County 52 kmMcIntosh County 54 kmLatimer County 56 kmAtoka County 60 kmSeminole County 71 kmOkfuskee County 73 kmPushmataha 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 1.6 (ml)
Depth
4.0 km below the surface
Felt
no reports yet
Nearest
Pittsburg County, 13 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1577 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 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 34.9155, -95.8857. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pittsburg County, OK 13 km (8 mi) W of here earthquakes near Pittsburg County
Hughes County, OK 37 km (23 mi) ESE of here earthquakes near Hughes County
Coal County, OK 52 km (32 mi) NE of here earthquakes near Coal County
McIntosh County, OK 54 km (34 mi) SSW of here earthquakes near McIntosh County
Latimer County, OK 56 km (35 mi) W of here earthquakes near Latimer County
Atoka County, OK 60 km (37 mi) NNE of here earthquakes near Atoka County

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

Aftershocks so far

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

  1. 1.6 13 km E of Crowder, Oklahoma
  2. 2.1 13 km WSW of Quinton, Oklahoma
  3. 1.8 Oklahoma
  4. 2.1 11 km E of Crowder, Oklahoma
  5. 2.3 11 km E of Crowder, Oklahoma
  6. 2.3 10 km E of Crowder, Oklahoma
  7. 1.5 11 km E of Crowder, Oklahoma
  8. 1.5 6 km ESE of Calvin, Oklahoma
  9. 2.3 13 km WSW of Quinton, Oklahoma
  10. 1.9 6 km SE of Calvin, Oklahoma
  11. 2.2 6 km SE of Calvin, Oklahoma
  12. 2.0 6 km SSE of Calvin, Oklahoma
  13. 1.5 6 km SSE of Calvin, Oklahoma
  14. 1.5 6 km SSE of Calvin, Oklahoma
  15. 1.9 5 km SE of Calvin, 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.