QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

7 km S of Lehigh, Oklahoma

· 6.0 km deep · released about 17 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Atoka County 18 kmCoal County 21 kmJohnston County 40 kmBryan County 49 kmPontotoc County 55 kmMarshall County 65 kmHughes County 72 kmPittsburg County 73 kmChoctaw County 75 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
6.0 km below the surface
Felt
no reports yet
Nearest
Atoka County, 18 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1672 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 17 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 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× the energy of this one
  4. This earthquake M 1.8 about 17 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 34.4043, -96.2313. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Atoka County, OK 18 km (11 mi) W of here earthquakes near Atoka County
Coal County, OK 21 km (13 mi) SSE of here earthquakes near Coal County
Johnston County, OK 40 km (25 mi) ENE of here earthquakes near Johnston County
Bryan County, OK 49 km (30 mi) N of here earthquakes near Bryan County
Pontotoc County, OK 55 km (34 mi) SE of here earthquakes near Pontotoc County
Marshall County, OK 65 km (40 mi) NE of here earthquakes near Marshall County

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

Aftershocks so far

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

  1. 1.5 10 km S of Pittsburg, Oklahoma
  2. 1.6 9 km SSE of Ada, Oklahoma
  3. 1.6 8 km ESE of Mill Creek, Oklahoma
  4. 1.6 10 km SSE of Ada, Oklahoma
  5. 1.6 9 km W of Wardville, Oklahoma
  6. 1.8 9 km W of Wardville, Oklahoma
  7. 1.6 9 km W of Wardville, Oklahoma
  8. 1.7 9 km W of Wardville, Oklahoma
  9. 2.3 6 km SSE of Tishomingo, Oklahoma
  10. 1.8 12 km SSE of Wapanucka, Oklahoma
  11. 1.8 3 km S of Caddo, Oklahoma
  12. 1.8 3 km NNE of Stringtown, Oklahoma
  13. 1.8 10 km SSE of Wapanucka, Oklahoma
  14. 1.5 9 km SSE of Ada, Oklahoma
  15. 1.6 11 km W of Wardville, 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.