QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

0 km WNW of Bison, Oklahoma

· 5.0 km deep · released about 680 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garfield County 22 kmKingfisher County 28 kmLogan County 51 kmMajor County 59 kmBlaine County 60 kmNoble County 63 kmGrant County 66 kmAlfalfa County 70 kmCanadian County 73 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 2.9 (ml)
Depth
5.0 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Garfield County, 22 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2837 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 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 36.1981, -97.8989. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garfield County, OK 22 km (14 mi) SSW of here earthquakes near Garfield County
Kingfisher County, OK 28 km (17 mi) N of here earthquakes near Kingfisher County
Logan County, OK 51 km (32 mi) NW of here earthquakes near Logan County
Major County, OK 59 km (37 mi) ESE of here earthquakes near Major County
Blaine County, OK 60 km (37 mi) NE of here earthquakes near Blaine County
Noble County, OK 63 km (39 mi) WSW of here earthquakes near Noble County

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

Aftershocks so far

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

  1. 2.6 5 km WSW of Lucien, Oklahoma
  2. 2.5 1 km N of Goltry, Oklahoma
  3. 2.3 9 km ESE of Bison, Oklahoma
  4. 2.5 5 km NNE of Okeene, Oklahoma
  5. 2.3 8 km SW of Goltry, Oklahoma
  6. 2.3 5 km N of Ames, Oklahoma
  7. 2.4 8 km NNE of Marshall, Oklahoma
  8. 3.3 4 km ESE of Meno, Oklahoma
  9. 2.2 5 km WNW of Lucien, Oklahoma
  10. 2.4 11 km SSE of Marshall, Oklahoma
  11. 2.2 11 km SSE of Marshall, Oklahoma
  12. 2.7 7 km NNE of Marshall, Oklahoma
  13. 3.9 8 km NE of Marshall, Oklahoma
  14. 2.3 1 km ENE of Douglas, Oklahoma
  15. 3.6 4 km ENE of Douglas, 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 350 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.