QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

13 km WNW of Foster, Oklahoma

· 16 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garvin County 29 kmStephens County 29 kmMcClain County 42 kmGrady County 46 kmMurray County 55 kmCarter County 55 kmJefferson County 65 kmCleveland County 66 kmComanche County 78 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 1.6 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Garvin County, 29 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1664 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 34.6645, -97.6272. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garvin County, OK 29 km (18 mi) W of here earthquakes near Garvin County
Stephens County, OK 29 km (18 mi) NE of here earthquakes near Stephens County
McClain County, OK 42 km (26 mi) SSW of here earthquakes near McClain County
Grady County, OK 46 km (29 mi) SSE of here earthquakes near Grady County
Murray County, OK 55 km (34 mi) WNW of here earthquakes near Murray County
Carter County, OK 55 km (34 mi) NW of here earthquakes near Carter County

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

Aftershocks so far

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

  1. 1.5 9 km SSE of Dibble, Oklahoma
  2. 1.8 1 km SE of Erin Springs, Oklahoma
  3. 1.7 1 km ESE of Ratliff City, Oklahoma
  4. 1.9 0 km NNW of Ratliff City, Oklahoma
  5. 2.2 0 km S of Ratliff City, Oklahoma
  6. 2.0 0 km ESE of Ratliff City, Oklahoma
  7. 1.6 10 km SSW of Bradley, Oklahoma
  8. 1.7 3 km WSW of Washington, Oklahoma
  9. 1.7 8 km W of Davis, Oklahoma
  10. 1.7 5 km SW of Washington, Oklahoma
  11. 2.0 3 km WSW of Washington, Oklahoma
  12. 2.0 4 km WSW of Washington, Oklahoma
  13. 1.9 4 km WSW of Washington, Oklahoma
  14. 1.9 4 km SW of Washington, Oklahoma
  15. 2.0 4 km WSW of Washington, 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.