QuakeIndex

Earthquake · automatic estimate, may change

M 1.8ml

6 km SE of Ratliff City, Oklahoma

· 4.8 km deep · released about 16 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carter County 23 kmGarvin County 36 kmMurray County 36 kmStephens County 38 kmJefferson County 49 kmLove County 54 kmMcClain County 68 kmJohnston County 74 kmMarshall County 76 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 1.8 (ml)
Depth
4.8 km below the surface
Felt
no reports yet
Nearest
Carter County, 23 km SE
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 124 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 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 970,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 680,000× the energy of this one
  3. Around the size people start to feel M 3.0 61× the energy of this one
  4. This earthquake M 1.8 about 16 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 34.4079, -97.4529. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carter County, OK 23 km (14 mi) NW of here earthquakes near Carter County
Garvin County, OK 36 km (22 mi) SSW of here earthquakes near Garvin County
Murray County, OK 36 km (22 mi) WSW of here earthquakes near Murray County
Stephens County, OK 38 km (24 mi) ESE of here earthquakes near Stephens County
Jefferson County, OK 49 km (30 mi) NE of here earthquakes near Jefferson County
Love County, OK 54 km (33 mi) NNW of here earthquakes near Love County

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

Aftershocks so far

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

  1. 1.2 6 km ESE of Dougherty, Oklahoma
  2. 1.2 11 km SE of Katie, Oklahoma
  3. 1.5 8 km W of Davis, Oklahoma
  4. 1.5 11 km W of Davis, Oklahoma
  5. 1.9 4 km SE of Ratliff City, Oklahoma
  6. 2.0 8 km ESE of Loco, Oklahoma
  7. 1.9 8 km SE of Loco, Oklahoma
  8. 1.7 2 km SE of Ratliff City, Oklahoma
  9. 1.6 5 km ESE of Velma, Oklahoma
  10. 1.8 5 km ESE of Velma, Oklahoma
  11. 1.6 7 km ESE of Velma, Oklahoma
  12. 1.7 12 km NNE of Bray, Oklahoma
  13. 1.5 8 km W of Davis, Oklahoma
  14. 1.8 12 km NNE of Bray, Oklahoma
  15. 1.9 12 km NNE of Bray, 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.