QuakeIndex

Earthquake · automatic estimate, may change

M 1.9ml

Earthquake near McAlester, OK

No earthquake was likely felt in McAlester in the 24 hours to 3:37 pm CST (21:37 UTC). The last one was M 3.4, 220 km (136 mi) WNW, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near McAlester

This page: a magnitude 1.9 earthquake was recorded 29 km (18 mi) northwest of McAlester, OK, at 6:47 pm CDT on 2 August 2022 (23:47 UTC), 6.1 km deep. The magnitude and location are an automatic first estimate and may change.

USGS: 11 km E of Lamar, Oklahoma

6:47 pm CDT, Aug 2, 2022 · · 6.1 km deep · released about 20 lb of TNT

10 km30 km60 km120 km N Hughes County 23 kmPittsburg County 31 kmMcIntosh County 42 kmOkfuskee County 49 kmSeminole County 55 kmOkmulgee County 59 kmCoal County 64 kmLatimer County 72 kmPontotoc County 76 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
6:47 pm CDT on 2 August 2022 ()
Where
29 km (18 mi) northwest of McAlester, OK · earthquakes near McAlester
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.9 (ml)
Depth
6.1 km below the surface
Felt
no reports yet
Nearest
Hughes County, 23 km WSW
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 1562 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 19 km (12 mi) from the epicentre. In McAlester, 29 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: Wetumka.

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.

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 35.1110, -96.0063. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hughes County, OK 23 km (14 mi) WSW earthquakes near Hughes County
Pittsburg County, OK 31 km (19 mi) SE earthquakes near Pittsburg County
McIntosh County, OK 42 km (26 mi) NE earthquakes near McIntosh County
Okfuskee County, OK 49 km (31 mi) NW earthquakes near Okfuskee County
Seminole County, OK 55 km (34 mi) W earthquakes near Seminole County
Okmulgee County, OK 59 km (37 mi) N earthquakes near Okmulgee County

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

Aftershocks so far

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

  1. 1.6 5 km NE of Stuart, Oklahoma
  2. 1.8 Oklahoma
  3. 1.7 14 km WSW of Quinton, Oklahoma
  4. 1.6 1 km ENE of Arpelar, Oklahoma
  5. 1.9 2 km E of Arpelar, Oklahoma
  6. 1.7 2 km E of Arpelar, Oklahoma
  7. 1.5 14 km WSW of Quinton, Oklahoma
  8. 1.7 5 km NE of Stuart, Oklahoma
  9. 1.8 10 km WNW of Wardville, Oklahoma
  10. 1.7 9 km WNW of Wardville, Oklahoma
  11. 1.6 10 km WNW of Wardville, Oklahoma
  12. 2.0 11 km E of Crowder, Oklahoma
  13. 1.7 11 km E of Crowder, Oklahoma
  14. 1.6 11 km WNW of Wardville, Oklahoma
  15. 1.6 9 km SW of Ashland, 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.