QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Atoka, OK

No earthquake was likely felt in Atoka in the 24 hours to 10:39 pm CST (04:39 UTC). The last one was M 3.4, 221 km (137 mi) NW, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Atoka

This page: a magnitude 1.6 earthquake was recorded 10 km (6 mi) west of Atoka, OK, at 10:14 pm CST on 26 February 2022 (04:14 UTC), 6.4 km deep.

USGS: 9 km NW of Tushka, Oklahoma

10:14 pm CST, Feb 26, 2022 · · 6.4 km deep · released about 7.3 lb of TNT

10 km30 km60 km120 km N Atoka County 19 kmCoal County 23 kmJohnston County 39 kmBryan County 47 kmPontotoc County 56 kmMarshall County 63 kmHughes County 74 kmChoctaw County 75 kmPittsburg 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
10:14 pm CST on 26 February 2022 ()
Where
10 km (6 mi) west of Atoka, OK · earthquakes near Atoka
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.6 (ml)
Depth
6.4 km below the surface
Felt
no reports yet
Nearest
Atoka County, 19 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1718 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 3 km (2 mi) from the epicentre. In Atoka, 10 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Coalgate, Caddo.

How big was it?

This earthquake released about 7.3 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 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× 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 7.3 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 34.3833, -96.2410. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Atoka County, OK 19 km (12 mi) E earthquakes near Atoka County
Coal County, OK 23 km (14 mi) N earthquakes near Coal County
Johnston County, OK 39 km (24 mi) WSW earthquakes near Johnston County
Bryan County, OK 47 km (29 mi) S earthquakes near Bryan County
Pontotoc County, OK 56 km (35 mi) NW earthquakes near Pontotoc County
Marshall County, OK 63 km (39 mi) SW earthquakes near Marshall County

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

Aftershocks so far

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

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