QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

13 km E of Rush Springs, Oklahoma

· 17 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Grady County 28 kmStephens County 33 kmMcClain County 42 kmGarvin County 46 kmComanche County 62 kmCleveland County 65 kmCaddo County 68 kmCotton County 75 kmJefferson County 75 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
17 km below the surface
Felt
no reports yet
Nearest
Grady County, 28 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 790 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 34.7770, -97.8108. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grady County, OK 28 km (17 mi) SSE of here earthquakes near Grady County
Stephens County, OK 33 km (21 mi) N of here earthquakes near Stephens County
McClain County, OK 42 km (26 mi) SW of here earthquakes near McClain County
Garvin County, OK 46 km (29 mi) W of here earthquakes near Garvin County
Comanche County, OK 62 km (39 mi) ENE of here earthquakes near Comanche County
Cleveland County, OK 65 km (41 mi) SW of here earthquakes near Cleveland County

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

Aftershocks so far

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

  1. 1.5 4 km E of Amber, Oklahoma
  2. 1.7 6 km ESE of Amber, Oklahoma
  3. 2.4 5 km ESE of Amber, Oklahoma
  4. 1.6 5 km ESE of Amber, Oklahoma
  5. 1.5 5 km ESE of Amber, Oklahoma
  6. 1.5 2 km ESE of Amber, Oklahoma
  7. 2.3 5 km ESE of Amber, Oklahoma
  8. 2.4 5 km ESE of Amber, Oklahoma
  9. 1.8 5 km ESE of Amber, Oklahoma
  10. 2.0 6 km ESE of Amber, Oklahoma
  11. 1.8 5 km ESE of Amber, Oklahoma
  12. 1.6 5 km ESE of Amber, Oklahoma
  13. 2.0 7 km SSE of Erin Springs, Oklahoma
  14. 1.5 3 km NNE of Cole, Oklahoma
  15. 2.0 0 km WNW of Cole, 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.