QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

10 km SE of Wapanucka, Oklahoma

· 5.0 km deep · released about 12 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Johnston County 28 kmAtoka County 30 kmCoal County 31 kmBryan County 39 kmMarshall County 50 kmPontotoc County 56 kmMurray County 69 kmChoctaw County 79 kmGrayson County 82 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 1.7 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Johnston County, 28 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1942 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 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 900,000× the energy of this one
  3. Around the size people start to feel M 3.0 80× the energy of this one
  4. This earthquake M 1.7 about 12 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 34.3058, -96.3463. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Johnston County, OK 28 km (18 mi) E of here earthquakes near Johnston County
Atoka County, OK 30 km (19 mi) WSW of here earthquakes near Atoka County
Coal County, OK 31 km (19 mi) S of here earthquakes near Coal County
Bryan County, OK 39 km (24 mi) N of here earthquakes near Bryan County
Marshall County, OK 50 km (31 mi) NE of here earthquakes near Marshall County
Pontotoc County, OK 56 km (35 mi) SE of here earthquakes near Pontotoc County

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

Aftershocks so far

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

  1. 1.7 4 km SSW of Mill Creek, Oklahoma
  2. 1.5 10 km SSE of Wapanucka, Oklahoma
  3. 1.9 2 km WSW of Mill Creek, Oklahoma
  4. 1.8 4 km SW of Mill Creek, Oklahoma
  5. 1.7 5 km SSW of Mill Creek, Oklahoma
  6. 1.8 4 km ENE of Tushka, Oklahoma
  7. 1.7 3 km WSW of Mill Creek, Oklahoma
  8. 2.0 5 km NNE of Centrahoma, Oklahoma
  9. 1.5 5 km NE of Centrahoma, Oklahoma
  10. 1.9 5 km NE of Centrahoma, Oklahoma
  11. 1.6 4 km NE of Centrahoma, Oklahoma
  12. 2.1 4 km NE of Centrahoma, Oklahoma
  13. 1.5 4 km NNE of Centrahoma, Oklahoma
  14. 2.2 4 km NE of Centrahoma, Oklahoma
  15. 1.8 2 km S of Mill Creek, 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.