QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

6 km NNW of Foster, Oklahoma

· 6.4 km deep · released about 22 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garvin County 19 kmStephens County 38 kmMcClain County 39 kmMurray County 46 kmCarter County 51 kmGrady County 51 kmCleveland County 62 kmJefferson County 70 kmPontotoc 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 1.9 (ml)
Depth
6.4 km below the surface
Felt
no reports yet
Nearest
Garvin County, 19 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2022 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 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 34.6730, -97.5167. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garvin County, OK 19 km (12 mi) WSW of here earthquakes near Garvin County
Stephens County, OK 38 km (23 mi) NE of here earthquakes near Stephens County
McClain County, OK 39 km (24 mi) S of here earthquakes near McClain County
Murray County, OK 46 km (28 mi) WNW of here earthquakes near Murray County
Carter County, OK 51 km (32 mi) NNW of here earthquakes near Carter County
Grady County, OK 51 km (32 mi) SE of here earthquakes near Grady County

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

Aftershocks so far

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

  1. 1.6 10 km SE of Ratliff City, Oklahoma
  2. 1.7 11 km SE of Ratliff City, Oklahoma
  3. 1.9 11 km SE of Ratliff City, Oklahoma
  4. 2.2 10 km SE of Ratliff City, Oklahoma
  5. 1.8 14 km SE of Ratliff City, Oklahoma
  6. 1.6 10 km SSE of Tatums, Oklahoma
  7. 1.7 12 km SE of Ratliff City, Oklahoma
  8. 1.7 10 km SE of Ratliff City, Oklahoma
  9. 1.9 10 km SE of Ratliff City, Oklahoma
  10. 2.5 9 km SE of Ratliff City, Oklahoma
  11. 1.8 12 km SE of Ratliff City, Oklahoma
  12. 2.0 11 km SE of Ratliff City, Oklahoma
  13. 2.1 11 km SE of Ratliff City, Oklahoma
  14. 1.7 11 km SE of Ratliff City, Oklahoma
  15. 2.0 9 km SE of Ratliff City, 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.