QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

9 km ENE of Carmen, Oklahoma

· 5.0 km deep · released about 85 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Alfalfa County 15 kmMajor County 36 kmWoods County 46 kmGrant County 56 kmGarfield County 57 kmHarper County 70 kmBarber County 75 kmBlaine County 81 kmKingfisher County 82 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 2.3 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Alfalfa County, 15 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2712 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 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 36.6027, -98.3661. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Alfalfa County, OK 15 km (9 mi) SSW of here earthquakes near Alfalfa County
Major County, OK 36 km (22 mi) NNE of here earthquakes near Major County
Woods County, OK 46 km (29 mi) ESE of here earthquakes near Woods County
Grant County, OK 56 km (34 mi) WSW of here earthquakes near Grant County
Garfield County, OK 57 km (36 mi) WNW of here earthquakes near Garfield County
Harper County, KS 70 km (44 mi) SSW of here earthquakes near Harper County

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

Aftershocks so far

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

  1. 2.1 10 km ESE of Lambert, Oklahoma
  2. 2.3 7 km ENE of Nescatunga, Oklahoma
  3. 2.2 7 km ENE of Nescatunga, Oklahoma
  4. 2.6 10 km ESE of Lambert, Oklahoma
  5. 2.5 4 km SE of Cleo Springs, Oklahoma
  6. 2.3 8 km W of Fairview, Oklahoma
  7. 1.7 1 km SE of Meno, Oklahoma
  8. 1.5 Oklahoma
  9. 2.2 7 km E of Nescatunga, Oklahoma
  10. 1.6 7 km E of Nescatunga, Oklahoma
  11. 1.7 13 km SSE of Waynoka, Oklahoma
  12. 2.3 5 km NNW of Ames, Oklahoma
  13. 1.8 3 km SSE of Meno, Oklahoma
  14. 2.1 17 km SSE of Waynoka, Oklahoma
  15. 1.8 6 km SW of Goltry, 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 16,000 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.