QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

4 km NW of Orlando, Oklahoma

· 8.2 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Noble County 28 kmLogan County 29 kmGarfield County 40 kmPayne County 41 kmKingfisher County 53 kmPawnee County 66 kmOklahoma County 69 kmLincoln County 71 kmKay 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 2.5 (ml)
Depth
8.2 km below the surface
Felt
no reports yet
Nearest
Noble County, 28 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3663 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 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 36.1765, -97.4148. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Noble County, OK 28 km (17 mi) SW of here earthquakes near Noble County
Logan County, OK 29 km (18 mi) N of here earthquakes near Logan County
Garfield County, OK 40 km (25 mi) ESE of here earthquakes near Garfield County
Payne County, OK 41 km (25 mi) WNW of here earthquakes near Payne County
Kingfisher County, OK 53 km (33 mi) ENE of here earthquakes near Kingfisher County
Pawnee County, OK 66 km (41 mi) WSW of here earthquakes near Pawnee County

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

Aftershocks so far

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

  1. 2.8 10 km W of Douglas, Oklahoma
  2. 3.1 3 km NE of Coyle, Oklahoma
  3. 3.0 8 km NE of Marshall, Oklahoma
  4. 3.6 8 km NE of Marshall, Oklahoma
  5. 3.6 2 km NW of Fairmont, Oklahoma
  6. 2.4 10 km NE of Crescent, Oklahoma
  7. 2.5 5 km SSE of Perry, Oklahoma
  8. 2.5 4 km SSE of Covington, Oklahoma
  9. 2.5 4 km SSE of Covington, Oklahoma
  10. 2.7 4 km SSE of Covington, Oklahoma
  11. 2.7 11 km WNW of Orlando, Oklahoma
  12. 2.5 7 km WSW of Red Rock, Oklahoma
  13. 2.5 1 km WSW of Douglas, Oklahoma
  14. 2.7 1 km W of Douglas, Oklahoma
  15. 2.9 2 km NNW of Fairmont, 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 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.