QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

11 km WSW of Shamrock, Oklahoma

· 6.3 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lincoln County 24 kmCreek County 29 kmPayne County 35 kmPawnee County 50 kmOkfuskee County 55 kmLogan County 69 kmOkmulgee County 70 kmOklahoma County 73 kmTulsa County 73 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 2.5 (ml)
Depth
6.3 km below the surface
Felt
no reports yet
Nearest
Lincoln County, 24 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3141 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 35.8613, -96.6933. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lincoln County, OK 24 km (15 mi) NE of here earthquakes near Lincoln County
Creek County, OK 29 km (18 mi) W of here earthquakes near Creek County
Payne County, OK 35 km (22 mi) SE of here earthquakes near Payne County
Pawnee County, OK 50 km (31 mi) S of here earthquakes near Pawnee County
Okfuskee County, OK 55 km (34 mi) NW of here earthquakes near Okfuskee County
Logan County, OK 69 km (43 mi) E of here earthquakes near Logan 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. 1.9 5 km SE of Cushing, Oklahoma
  2. 1.6 5 km W of Cushing, Oklahoma
  3. 2.7 6 km SE of Cushing, Oklahoma
  4. 2.7 2 km SSE of Cushing, Oklahoma
  5. 2.6 4 km ESE of Carney, Oklahoma
  6. 2.7 3 km S of Cushing, Oklahoma
  7. 3.0 0 km NNE of Coyle, Oklahoma
  8. 3.6 2 km SW of Wellston, Oklahoma
  9. 2.6 0 km N of Coyle, Oklahoma
  10. 3.3 0 km N of Coyle, Oklahoma
  11. 2.0 0 km NNE of Coyle, Oklahoma
  12. 2.9 4 km W of Cushing, Oklahoma
  13. 2.6 0 km NNE of Coyle, Oklahoma
  14. 2.7 0 km ENE of Coyle, Oklahoma
  15. 2.9 6 km SE of Meridian, 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 5.0 on 2016-11-07 — it released about 5,600 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.