QuakeIndex

Earthquake · automatic estimate, may change

M 2.1ml

6 km W of Summit, Oklahoma

· 19 km deep · released about 44 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Muskogee County 12 kmWagoner County 33 kmMcIntosh County 37 kmOkmulgee County 42 kmCherokee County 52 kmHaskell County 60 kmTulsa County 64 kmSequoyah County 70 kmMayes 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 2.1 (ml)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Muskogee County, 12 km ESE
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 120 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 44 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 340,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 240,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 44 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 35.6680, -95.4971. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Muskogee County, OK 12 km (7 mi) WNW of here earthquakes near Muskogee County
Wagoner County, OK 33 km (20 mi) S of here earthquakes near Wagoner County
McIntosh County, OK 37 km (23 mi) NNE of here earthquakes near McIntosh County
Okmulgee County, OK 42 km (26 mi) E of here earthquakes near Okmulgee County
Cherokee County, OK 52 km (32 mi) WSW of here earthquakes near Cherokee County
Haskell County, OK 60 km (37 mi) NW of here earthquakes near Haskell County

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

Aftershocks so far

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

  1. 1.4 4 km SW of Hulbert, Oklahoma
  2. 1.4 2 km N of Notiechtown, Oklahoma
  3. 1.7 2 km SE of Zeb, Oklahoma
  4. 1.5 2 km NNW of Notiechtown, Oklahoma
  5. 1.8 10 km SE of Texanna, Oklahoma
  6. 1.7 10 km SE of Texanna, Oklahoma
  7. 1.5 4 km SW of Hulbert, Oklahoma
  8. 1.7 2 km SE of Zeb, Oklahoma
  9. 1.7 3 km SW of Hulbert, 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.