QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

Oklahoma

· 7.6 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Logan County 7 kmPayne County 40 kmOklahoma County 44 kmKingfisher County 49 kmNoble County 50 kmLincoln County 53 kmGarfield County 60 kmCanadian County 70 kmPawnee County 74 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 2.8 (ml)
Depth
7.6 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Logan County, 7 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1517 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 35.9513, -97.3875. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Logan County, OK 7 km (4 mi) NE of here earthquakes near Logan County
Payne County, OK 40 km (25 mi) WSW of here earthquakes near Payne County
Oklahoma County, OK 44 km (27 mi) N of here earthquakes near Oklahoma County
Kingfisher County, OK 49 km (31 mi) E of here earthquakes near Kingfisher County
Noble County, OK 50 km (31 mi) SSW of here earthquakes near Noble County
Lincoln County, OK 53 km (33 mi) WNW of here earthquakes near Lincoln County

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

Aftershocks so far

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

  1. 3.5 5 km SW of Fallis, Oklahoma
  2. 2.8 5 km SW of Fallis, Oklahoma
  3. 3.0 5 km W of Arcadia, Oklahoma
  4. 3.4 4 km SW of Fallis, Oklahoma
  5. 2.5 4 km SW of Fallis, Oklahoma
  6. 3.3 4 km SW of Fallis, Oklahoma
  7. 3.1 5 km SW of Fallis, Oklahoma
  8. 3.3 Oklahoma
  9. 2.7 4 km SW of Fallis, Oklahoma
  10. 2.9 5 km WSW of Fallis, Oklahoma
  11. 2.5 7 km W of Orlando, Oklahoma
  12. 2.8 4 km WNW of Douglas, Oklahoma
  13. 2.6 Oklahoma
  14. 2.7 9 km ENE of Marshall, Oklahoma
  15. 3.5 4 km NW 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 4.2 on 2016-01-01 — it released about 130 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.