QuakeIndex

Earthquake · reviewed by a seismologist

M 3.6ml

12 km WSW of Ralston, Oklahoma

· 4.5 km deep · released about 3.8 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pawnee County 23 kmNoble County 34 kmPayne County 44 kmOsage County 45 kmKay County 46 kmCreek County 76 kmLogan County 81 kmGarfield County 83 kmLincoln County 85 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 3.6 (ml)
Depth
4.5 km below the surface
Felt
8 reports · strongest reported intensity III
Measured shaking
intensity III (ShakeMap)
Nearest
Pawnee County, 23 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3011 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 8 people have reported feeling it to USGS.

How big was it?

This earthquake released about 3.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.6 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 45,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 2,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,400× the energy of this one
  4. This earthquake M 3.6 about 3.8 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 7.9× more

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 36.4665, -96.8674. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pawnee County, OK 23 km (14 mi) NW of here earthquakes near Pawnee County
Noble County, OK 34 km (21 mi) ENE of here earthquakes near Noble County
Payne County, OK 44 km (27 mi) NNE of here earthquakes near Payne County
Osage County, OK 45 km (28 mi) WSW of here earthquakes near Osage County
Kay County, OK 46 km (29 mi) SSE of here earthquakes near Kay County
Creek County, OK 76 km (47 mi) NW of here earthquakes near Creek County

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

Aftershocks so far

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

  1. 1.7 7 km N of Maramec, Oklahoma
  2. 2.1 13 km SSE of Billings, Oklahoma
  3. 1.8 10 km ENE of Perry, Oklahoma
  4. 2.0 7 km WSW of Perry, Oklahoma
  5. 1.7 6 km WSW of Perry, Oklahoma
  6. 2.2 5 km WSW of Perry, Oklahoma
  7. 1.9 8 km ENE of Orlando, Oklahoma
  8. 1.9 10 km SSE of Perry, Oklahoma
  9. 1.7 9 km E of Perry, Oklahoma
  10. 1.8 6 km NW of Red Rock, Oklahoma
  11. 1.7 14 km NNW of Pawnee, Oklahoma
  12. 1.7 Oklahoma
  13. 1.9 15 km NW of Pawnee, Oklahoma
  14. 1.8 14 km NNW of Pawnee, Oklahoma
  15. 1.6 1 km W of Morrison, 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 2,000 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.