QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

7 km W of Cromwell, Oklahoma

· 2.9 km deep · released about 950 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Seminole County 21 kmOkfuskee County 24 kmPottawatomie County 40 kmHughes County 41 kmLincoln County 51 kmOkmulgee County 62 kmCreek County 65 kmPontotoc County 70 kmCleveland County 73 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 3.0 (ml)
Depth
2.9 km below the surface
Felt
4 reports · strongest reported intensity IV
Nearest
Seminole County, 21 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1517 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 35.3350, -96.5376. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Seminole County, OK 21 km (13 mi) NNE of here earthquakes near Seminole County
Okfuskee County, OK 24 km (15 mi) SW of here earthquakes near Okfuskee County
Pottawatomie County, OK 40 km (25 mi) ENE of here earthquakes near Pottawatomie County
Hughes County, OK 41 km (25 mi) NW of here earthquakes near Hughes County
Lincoln County, OK 51 km (32 mi) SE of here earthquakes near Lincoln County
Okmulgee County, OK 62 km (39 mi) WSW of here earthquakes near Okmulgee County

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

Aftershocks so far

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

  1. 2.0 5 km SSE of Yeager, Oklahoma
  2. 2.0 4 km N of Calvin, Oklahoma
  3. 2.2 4 km NNE of Calvin, Oklahoma
  4. 1.9 7 km E of Meeker, Oklahoma
  5. 2.3 4 km NNE of Calvin, Oklahoma
  6. 2.3 4 km N of Calvin, OK
  7. 1.9 6 km W of Spaulding, Oklahoma
  8. 1.5 6 km WSW of Sparks, Oklahoma
  9. 2.2 5 km SSE of Yeager, Oklahoma
  10. 1.7 8 km NW of Prague, Oklahoma
  11. 2.3 5 km WNW of Horntown, Oklahoma
  12. 2.8 6 km W of Horntown, Oklahoma
  13. 2.9 5 km W of Horntown, Oklahoma
  14. 3.3 3 km W of Horntown, Oklahoma
  15. 2.3 9 km SSE of Sparks, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.