QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

5 km NNW of Quinlan, Oklahoma

· 4.6 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Woodward County 19 kmWoods County 32 kmMajor County 52 kmDewey County 58 kmHarper County 62 kmEllis County 68 kmAlfalfa County 72 kmComanche County 78 kmBarber County 88 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
4.6 km below the surface
Felt
no reports yet
Nearest
Woodward County, 19 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3722 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 36.4973, -99.0751. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Woodward County, OK 19 km (12 mi) ENE of here earthquakes near Woodward County
Woods County, OK 32 km (20 mi) SW of here earthquakes near Woods County
Major County, OK 52 km (32 mi) WNW of here earthquakes near Major County
Dewey County, OK 58 km (36 mi) N of here earthquakes near Dewey County
Harper County, OK 62 km (39 mi) ESE of here earthquakes near Harper County
Ellis County, OK 68 km (42 mi) ENE of here earthquakes near Ellis 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. 2.6 6 km NNW of Quinlan, Oklahoma
  2. 2.5 16 km SE of Waynoka, Oklahoma
  3. 2.6 6 km NNE of Quinlan, Oklahoma
  4. 3.4 5 km N of Quinlan, Oklahoma
  5. 2.9 5 km N of Quinlan, Oklahoma
  6. 2.5 5 km N of Quinlan, Oklahoma
  7. 2.5 6 km NNE of Quinlan, Oklahoma
  8. 2.7 5 km NNE of Quinlan, Oklahoma
  9. 3.0 9 km SW of Waynoka, Oklahoma
  10. 3.0 17 km SE of Waynoka, Oklahoma
  11. 3.3 2 km SSE of Avard, Oklahoma
  12. 3.1 17 km SE of Waynoka, Oklahoma
  13. 3.3 17 km SE of Waynoka, Oklahoma
  14. 3.4 17 km SE of Waynoka, Oklahoma
  15. 3.3 7 km W of Carmen, 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 5.1 on 2016-02-13 — it released about 7,900 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.