QuakeIndex

Earthquake · reviewed by a seismologist

M 3.6mwr

2 km NW of Fairmont, Oklahoma

· 6.1 km deep · released about 3.8 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garfield County 6 kmNoble County 44 kmGrant County 46 kmKingfisher County 51 kmLogan County 57 kmAlfalfa County 67 kmKay County 71 kmMajor County 74 kmPayne County 75 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 (mwr)
Depth
6.1 km below the surface
Felt
24 reports · strongest reported intensity V
Measured shaking
intensity IV (ShakeMap)
Nearest
Garfield County, 6 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2382 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 24 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 36.3742, -97.7229. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garfield County, OK 6 km (4 mi) E of here earthquakes near Garfield County
Noble County, OK 44 km (27 mi) W of here earthquakes near Noble County
Grant County, OK 46 km (29 mi) S of here earthquakes near Grant County
Kingfisher County, OK 51 km (32 mi) NNE of here earthquakes near Kingfisher County
Logan County, OK 57 km (35 mi) NNW of here earthquakes near Logan County
Alfalfa County, OK 67 km (41 mi) SE of here earthquakes near Alfalfa 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. 2.7 Oklahoma
  2. 2.4 8 km S of Perry, Oklahoma
  3. 2.5 5 km S of Nash, Oklahoma
  4. 3.2 8 km NE of Marshall, Oklahoma
  5. 2.6 7 km S of Perry, Oklahoma
  6. 3.0 8 km NW of Red Rock, Oklahoma
  7. 3.4 4 km NW of Mulhall, Oklahoma
  8. 2.6 5 km E of Pond Creek, Oklahoma
  9. 2.7 5 km E of Pond Creek, Oklahoma
  10. 2.5 5 km SSE of Kremlin, Oklahoma
  11. 2.7 10 km ESE of Jefferson, Oklahoma
  12. 2.5 5 km WNW of Lucien, Oklahoma
  13. 2.7 6 km NNW of Jefferson, Oklahoma
  14. 3.2 Oklahoma
  15. 2.5 6 km NNW of Jefferson, 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 2016-03-29 — it released about 7.9 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.