QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

6 km N of Agra, Oklahoma

· 5.1 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Payne County 17 kmLincoln County 28 kmPawnee County 43 kmCreek County 45 kmLogan County 52 kmNoble County 58 kmOklahoma County 65 kmOkfuskee County 73 kmPottawatomie County 83 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 2.7 (ml)
Depth
5.1 km below the surface
Felt
no reports yet
Nearest
Payne County, 17 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3677 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 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 35.9516, -96.8791. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Payne County, OK 17 km (10 mi) SSE of here earthquakes near Payne County
Lincoln County, OK 28 km (17 mi) N of here earthquakes near Lincoln County
Pawnee County, OK 43 km (27 mi) SSW of here earthquakes near Pawnee County
Creek County, OK 45 km (28 mi) W of here earthquakes near Creek County
Logan County, OK 52 km (32 mi) E of here earthquakes near Logan County
Noble County, OK 58 km (36 mi) SE of here earthquakes near Noble County

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

Aftershocks so far

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

  1. 3.3 3 km E of Luther, Oklahoma
  2. 2.3 6 km SW of Glencoe, Oklahoma
  3. 2.5 6 km SW of Glencoe, Oklahoma
  4. 3.5 1 km E of Luther, Oklahoma
  5. 3.6 1 km E of Luther, Oklahoma
  6. 2.5 9 km W of Quay, Oklahoma
  7. 2.7 1 km NE of Meridian, Oklahoma
  8. 2.6 1 km NE of Meridian, Oklahoma
  9. 2.5 3 km WNW of Stillwater, Oklahoma
  10. 2.7 2 km W of Kendrick, Oklahoma
  11. 2.6 3 km E of Luther, Oklahoma
  12. 2.0 1 km NE of Cushing, Oklahoma
  13. 2.5 4 km WNW of Stillwater, Oklahoma
  14. 2.6 Oklahoma
  15. 3.0 3 km WNW of Stillwater, 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 4.2 on 2016-04-07 — it released about 180 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.