QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

14 km WSW of Carmen, Oklahoma

· 6.3 km deep · released about 160 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Major County 24 kmWoods County 32 kmAlfalfa County 34 kmWoodward County 61 kmDewey County 71 kmBlaine County 74 kmGarfield County 75 kmBarber County 78 kmGrant County 79 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
6.3 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Major County, 24 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1276 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 160 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 92,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 65,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.8× the energy of this one
  4. This earthquake M 2.5 about 160 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 36.5263, -98.6065. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Major County, OK 24 km (15 mi) NNW of here earthquakes near Major County
Woods County, OK 32 km (20 mi) SE of here earthquakes near Woods County
Alfalfa County, OK 34 km (21 mi) SW of here earthquakes near Alfalfa County
Woodward County, OK 61 km (38 mi) E of here earthquakes near Woodward County
Dewey County, OK 71 km (44 mi) NNE of here earthquakes near Dewey County
Blaine County, OK 74 km (46 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

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

  1. 1.6 5 km SE of Longdale, Oklahoma
  2. 1.7 17 km ESE of Waynoka, Oklahoma
  3. 2.0 16 km SE of Waynoka, Oklahoma
  4. 2.3 6 km NNE of Avard, Oklahoma
  5. 1.5 7 km ENE of Aline, Oklahoma
  6. 2.2 4 km NNE of Quinlan, Oklahoma
  7. 1.6 2 km SE of Aline, Oklahoma
  8. 2.1 9 km SW of Waynoka, Oklahoma
  9. 2.1 8 km WSW of Waynoka, Oklahoma
  10. 2.0 9 km SW of Waynoka, Oklahoma
  11. 1.7 17 km SE of Waynoka, Oklahoma
  12. 1.8 8 km SW of Waynoka, Oklahoma
  13. 1.7 8 km W of Dacoma, Oklahoma
  14. 1.6 8 km SW of Waynoka, Oklahoma
  15. 1.8 1 km SSE of Aline, 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 8,200 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.