QuakeIndex

Earthquake · automatic estimate, may change

M 1.9ml

11 km E of Lamar, Oklahoma

· 6.1 km deep · released about 20 lb of TNT

Felt it? Tell USGS Check my area
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
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 1517 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 35.1110, -96.0063. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hughes County, OK 23 km (14 mi) ENE of here earthquakes near Hughes County
Pittsburg County, OK 31 km (19 mi) NW of here earthquakes near Pittsburg County
McIntosh County, OK 42 km (26 mi) SW of here earthquakes near McIntosh County
Okfuskee County, OK 49 km (31 mi) SE of here earthquakes near Okfuskee County
Seminole County, OK 55 km (34 mi) E of here earthquakes near Seminole County
Okmulgee County, OK 59 km (37 mi) S of here 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.