QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

5 km S of Ashland, Oklahoma

· 17 km deep · released about 20 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Coal County 25 kmAtoka County 36 kmPittsburg County 38 kmHughes County 40 kmPontotoc County 56 kmSeminole County 69 kmJohnston County 70 kmPushmataha County 72 kmLatimer 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 1.9 (ml)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Coal County, 25 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 324 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 20 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 5.8 760,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 540,000× the energy of this one
  3. Around the size people start to feel M 3.0 48× the energy of this one
  4. This earthquake M 1.9 about 20 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 34.7192, -96.0743. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Coal County, OK 25 km (15 mi) NE of here earthquakes near Coal County
Atoka County, OK 36 km (23 mi) N of here earthquakes near Atoka County
Pittsburg County, OK 38 km (23 mi) SW of here earthquakes near Pittsburg County
Hughes County, OK 40 km (25 mi) SSE of here earthquakes near Hughes County
Pontotoc County, OK 56 km (35 mi) E of here earthquakes near Pontotoc County
Seminole County, OK 69 km (43 mi) SE of here earthquakes near Seminole County

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

Aftershocks so far

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

  1. 2.0 5 km NE of Wardville, Oklahoma
  2. 1.6 7 km WNW of Arpelar, Oklahoma
  3. 1.5 4 km NE of Wardville, Oklahoma
  4. 2.7 5 km NE of Wardville, Oklahoma
  5. 1.8 6 km NE of Wardville, Oklahoma
  6. 1.5 3 km ENE of Wardville, Oklahoma
  7. 1.7 4 km NE of Wardville, Oklahoma
  8. 1.9 4 km ENE of Wardville, Oklahoma
  9. 1.7 5 km NE of Wardville, Oklahoma
  10. 1.7 3 km NE of Wardville, Oklahoma
  11. 1.7 4 km ENE of Wardville, Oklahoma
  12. 2.4 4 km ENE of Wardville, Oklahoma
  13. 1.5 4 km NE of Wardville, Oklahoma
  14. 2.5 4 km ENE of Wardville, Oklahoma
  15. 2.9 4 km ENE 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.