QuakeIndex

Earthquake · reviewed by a seismologist

M 3.5ml

8 km SW of Dibble, Oklahoma

· 11 km deep · released about 2.4 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grady County 18 kmMcClain County 23 kmCleveland County 43 kmGarvin County 46 kmStephens County 57 kmCaddo County 66 kmCanadian County 68 kmOklahoma County 70 kmPottawatomie County 72 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 3.5 (ml)
Depth
11 km below the surface
Felt
58 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
Nearest
Grady County, 18 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1912 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 58 people have reported feeling it to USGS.

How big was it?

This earthquake released about 2.4 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.5 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 70,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 3,100× the energy of this one
  3. Magna, Utah 2020 M 5.7 2,200× the energy of this one
  4. This earthquake M 3.5 about 2.4 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 5.1× more

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 34.9737, -97.6948. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grady County, OK 18 km (11 mi) ESE of here earthquakes near Grady County
McClain County, OK 23 km (14 mi) WSW of here earthquakes near McClain County
Cleveland County, OK 43 km (26 mi) SW of here earthquakes near Cleveland County
Garvin County, OK 46 km (28 mi) NW of here earthquakes near Garvin County
Stephens County, OK 57 km (35 mi) NNE of here earthquakes near Stephens County
Caddo County, OK 66 km (41 mi) ESE of here earthquakes near Caddo 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. 1.9 5 km WSW of Washington, Oklahoma
  2. 1.8 3 km E of Bradley, Oklahoma
  3. 2.1 3 km E of Bradley, Oklahoma
  4. 1.6 3 km E of Bradley, Oklahoma
  5. 1.7 3 km E of Bradley, Oklahoma
  6. 1.7 7 km SSE of Erin Springs, Oklahoma
  7. 1.8 7 km SSE of Erin Springs, Oklahoma
  8. 1.9 3 km S of Blanchard, Oklahoma
  9. 1.8 7 km SSE of Erin Springs, Oklahoma
  10. 2.2 7 km SSE of Erin Springs, Oklahoma
  11. 1.7 7 km NE of Alex, Oklahoma
  12. 2.7 6 km NNE of Alex, Oklahoma
  13. 1.5 5 km ESE of Union City, Oklahoma
  14. 1.6 8 km SW of Dibble, Oklahoma
  15. 2.1 1 km SSW of Verden, 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.