QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

7 km SE of Meridian, Oklahoma

· 7.1 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Logan County 27 kmLincoln County 30 kmOklahoma County 33 kmPayne County 37 kmNoble County 66 kmCleveland County 66 kmPottawatomie County 68 kmKingfisher County 69 kmPawnee 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 2.8 (ml)
Depth
7.1 km below the surface
Felt
no reports yet
Nearest
Logan County, 27 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3344 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

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 35.7935, -97.1894. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Logan County, OK 27 km (17 mi) ESE of here earthquakes near Logan County
Lincoln County, OK 30 km (18 mi) WNW of here earthquakes near Lincoln County
Oklahoma County, OK 33 km (21 mi) NE of here earthquakes near Oklahoma County
Payne County, OK 37 km (23 mi) SSW of here earthquakes near Payne County
Noble County, OK 66 km (41 mi) S of here earthquakes near Noble County
Cleveland County, OK 66 km (41 mi) N of here earthquakes near Cleveland County

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

Aftershocks so far

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

  1. 3.0 10 km WSW of Shamrock, Oklahoma
  2. 2.6 12 km N of Coyle, Oklahoma
  3. 2.5 5 km W of Arcadia, Oklahoma
  4. 2.6 10 km WSW of Shamrock, Oklahoma
  5. 3.4 10 km NE of Kendrick, Oklahoma
  6. 2.7 11 km WSW of Shamrock, Oklahoma
  7. 3.6 10 km WSW of Shamrock, Oklahoma
  8. 3.5 10 km WSW of Shamrock, Oklahoma
  9. 2.9 11 km NE of Kendrick, Oklahoma
  10. 4.2 10 km WSW of Shamrock, Oklahoma
  11. 2.5 8 km SSE of Luther, Oklahoma
  12. 2.1 2 km E of Luther, Oklahoma
  13. 2.6 2 km SSE of Carney, Oklahoma
  14. 3.2 5 km N of Coyle, Oklahoma
  15. 2.6 9 km NNW of Arcadia, 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 5.0 on 2016-11-07 — it released about 2,000 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.