QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

16 km NNE of Morrison, Oklahoma

· 4.1 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pawnee County 26 kmNoble County 27 kmPayne County 39 kmKay County 46 kmOsage County 52 kmLogan County 74 kmGarfield County 76 kmCreek County 77 kmLincoln County 81 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 2.1 (ml)
Depth
4.1 km below the surface
Felt
no reports yet
Nearest
Pawnee County, 26 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3537 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 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 36.4330, -96.9427. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pawnee County, OK 26 km (16 mi) WNW of here earthquakes near Pawnee County
Noble County, OK 27 km (17 mi) ENE of here earthquakes near Noble County
Payne County, OK 39 km (25 mi) N of here earthquakes near Payne County
Kay County, OK 46 km (29 mi) SSE of here earthquakes near Kay County
Osage County, OK 52 km (32 mi) WSW of here earthquakes near Osage County
Logan County, OK 74 km (46 mi) NE of here earthquakes near Logan County

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

Aftershocks so far

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

  1. 2.8 5 km NNE of Cushing, Oklahoma
  2. 2.5 5 km ESE of Red Rock, Oklahoma
  3. 2.7 9 km N of Coyle, Oklahoma
  4. 2.7 3 km NNE of Cushing, Oklahoma
  5. 3.0 5 km N of Maramec, Oklahoma
  6. 2.5 7 km N of Maramec, Oklahoma
  7. 2.9 6 km N of Maramec, Oklahoma
  8. 3.3 6 km N of Maramec, Oklahoma
  9. 2.6 3 km SW of Red Rock, Oklahoma
  10. 2.6 3 km NNE of Cushing, Oklahoma
  11. 2.7 13 km NNE of Morrison, Oklahoma
  12. 2.3 8 km WSW of Yale, Oklahoma
  13. 2.7 2 km NNW of Cushing, Oklahoma
  14. 2.7 6 km N of Maramec, Oklahoma
  15. 2.2 2 km NNW of Cushing, 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 5.8 on 2016-09-03 — it released about 350,000 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.