QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

17 km SSE of Waynoka, Oklahoma

· 6.2 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Major County 27 kmWoods County 32 kmWoodward County 43 kmAlfalfa County 53 kmDewey County 55 kmBlaine County 71 kmHarper County 87 kmBarber County 87 kmEllis County 89 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 1.5 (ml)
Depth
6.2 km below the surface
Felt
no reports yet
Nearest
Major County, 27 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2558 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 36.4425, -98.7955. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Major County, OK 27 km (17 mi) WNW of here earthquakes near Major County
Woods County, OK 32 km (20 mi) S of here earthquakes near Woods County
Woodward County, OK 43 km (27 mi) E of here earthquakes near Woodward County
Alfalfa County, OK 53 km (33 mi) SW of here earthquakes near Alfalfa County
Dewey County, OK 55 km (34 mi) NNE of here earthquakes near Dewey County
Blaine County, OK 71 km (44 mi) NNW of here earthquakes near Blaine 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. 1.7 9 km NNE of Quinlan, Oklahoma
  2. 1.7 9 km NNE of Quinlan, Oklahoma
  3. 1.8 9 km NNE of Quinlan, Oklahoma
  4. 1.6 10 km NNE of Quinlan, Oklahoma
  5. 1.8 10 km NNE of Quinlan, Oklahoma
  6. 1.8 7 km WNW of Ringwood, Oklahoma
  7. 1.7 4 km NNE of Avard, Oklahoma
  8. 2.1 16 km SE of Waynoka, Oklahoma
  9. 1.6 10 km NNE of Quinlan, Oklahoma
  10. 1.6 10 km NNE of Quinlan, Oklahoma
  11. 2.3 4 km WNW of Canton, Oklahoma
  12. 1.8 10 km NNE of Quinlan, Oklahoma
  13. 2.1 10 km WSW of Waynoka, Oklahoma
  14. 1.9 17 km SSE of Waynoka, Oklahoma
  15. 2.0 8 km SW of Waynoka, 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 250,000 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.