QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

7 km E of Medicine Park, Oklahoma

· 7.0 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Comanche County 9 kmCotton County 49 kmCaddo County 49 kmKiowa County 56 kmStephens County 58 kmGrady County 59 kmTillman County 61 kmWashita County 81 kmWichita County 86 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
7.0 km below the surface
Felt
no reports yet
Nearest
Comanche County, 9 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2384 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 19 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 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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 34.7268, -98.4205. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Comanche County, OK 9 km (5 mi) NE of here earthquakes near Comanche County
Cotton County, OK 49 km (30 mi) N of here earthquakes near Cotton County
Caddo County, OK 49 km (31 mi) S of here earthquakes near Caddo County
Kiowa County, OK 56 km (35 mi) ESE of here earthquakes near Kiowa County
Stephens County, OK 58 km (36 mi) WNW of here earthquakes near Stephens County
Grady County, OK 59 km (36 mi) SW of here earthquakes near Grady County

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

Aftershocks so far

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

  1. 1.5 6 km NW of Medicine Park, Oklahoma
  2. 1.6 4 km N of Cooperton, Oklahoma
  3. 1.6 6 km NE of Cooperton, Oklahoma
  4. 1.6 7 km NNE of Cooperton, Oklahoma
  5. 1.8 4 km NE of Medicine Park, Oklahoma
  6. 1.5 3 km NE of Medicine Park, Oklahoma
  7. 1.5 5 km E of Medicine Park, Oklahoma
  8. 2.1 6 km SW of Medicine Park, Oklahoma
  9. 1.6 6 km NNE of Cooperton, Oklahoma
  10. 1.5 Oklahoma
  11. 2.8 1 km ESE of Medicine Park, Oklahoma
  12. 1.7 6 km NW of Cooperton, Oklahoma
  13. 1.6 8 km NE of Cooperton, Oklahoma
  14. 1.6 4 km ENE of Medicine Park, Oklahoma
  15. 1.8 9 km NNE of Cooperton, 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.