QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

6 km ENE of Fairmont, Oklahoma

· 7.8 km deep · released about 1,100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garfield County 13 kmNoble County 36 kmGrant County 47 kmKingfisher County 55 kmLogan County 55 kmKay County 66 kmPayne County 69 kmAlfalfa County 72 kmMajor 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 3.0 (ml)
Depth
7.8 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Garfield County, 13 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1276 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 320,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 14,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 10,000× the energy of this one
  4. This earthquake M 3.0 about 1,100 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 36.3820, -97.6435. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garfield County, OK 13 km (8 mi) E of here earthquakes near Garfield County
Noble County, OK 36 km (23 mi) W of here earthquakes near Noble County
Grant County, OK 47 km (29 mi) SSE of here earthquakes near Grant County
Kingfisher County, OK 55 km (34 mi) NNE of here earthquakes near Kingfisher County
Logan County, OK 55 km (34 mi) NNW of here earthquakes near Logan County
Kay County, OK 66 km (41 mi) SW of here earthquakes near Kay 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. 1.8 5 km N of Dover, Oklahoma
  2. 2.3 5 km N of Dover, Oklahoma
  3. 1.7 5 km N of Dover, Oklahoma
  4. 1.5 8 km SSW of Marshall, Oklahoma
  5. 1.7 6 km ENE of Fairmont, Oklahoma
  6. 2.5 Oklahoma
  7. 2.1 5 km ENE of Fairmont, Oklahoma
  8. 2.0 9 km W of Lamont, Oklahoma
  9. 2.8 10 km W of Lamont, Oklahoma
  10. 1.8 10 km W of Lamont, Oklahoma
  11. 1.6 10 km W of Lamont, Oklahoma
  12. 2.3 10 km W of Lamont, Oklahoma
  13. 2.3 10 km W of Lamont, Oklahoma
  14. 1.9 10 km ESE of Jefferson, Oklahoma
  15. 1.5 10 km W of Lamont, 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 4.6 on 2018-04-09 — it released about 230 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.