QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

14 km WSW of Ralston, Oklahoma

· 4.4 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pawnee County 23 kmNoble County 33 kmPayne County 43 kmOsage County 46 kmKay County 46 kmCreek County 76 kmLogan County 79 kmGarfield County 82 kmLincoln County 84 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
4.4 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Pawnee County, 23 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3400 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

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 36.4544, -96.8810. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pawnee County, OK 23 km (14 mi) NW of here earthquakes near Pawnee County
Noble County, OK 33 km (20 mi) ENE of here earthquakes near Noble County
Payne County, OK 43 km (26 mi) NNE of here earthquakes near Payne County
Osage County, OK 46 km (29 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

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

  1. 2.5 14 km WSW of Ralston, Oklahoma
  2. 2.7 5 km NE of Morrison, Oklahoma
  3. 2.6 13 km NW of Pawnee, Oklahoma
  4. 2.4 10 km ESE of Red Rock, Oklahoma
  5. 3.3 10 km E of Red Rock, Oklahoma
  6. 2.6 5 km N of Maramec, Oklahoma
  7. 3.0 6 km N of Maramec, Oklahoma
  8. 2.8 13 km NW of Pawnee, Oklahoma
  9. 2.8 13 km NW of Pawnee, Oklahoma
  10. 3.4 6 km N of Maramec, Oklahoma
  11. 2.4 11 km NW of Pawnee, Oklahoma
  12. 2.1 14 km NNW of Pawnee, Oklahoma
  13. 2.6 13 km NNW of Pawnee, Oklahoma
  14. 3.3 9 km W of Red Rock, Oklahoma
  15. 2.0 3 km WNW of Skedee, 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 45,000 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.