QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

10 km NNE of Rosston, Oklahoma

· 6.8 km deep · released about 160 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Harper County 24 kmClark County 37 kmBeaver County 55 kmMeade County 56 kmComanche County 65 kmEllis County 77 kmWoodward County 77 kmLipscomb County 77 kmFord County 87 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 2.5 (ml)
Depth
6.8 km below the surface
Felt
no reports yet
Nearest
Harper County, 24 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2363 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 160 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 92,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 65,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.8× the energy of this one
  4. This earthquake M 2.5 about 160 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 36.9050, -99.8952. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Harper County, OK 24 km (15 mi) WNW of here earthquakes near Harper County
Clark County, KS 37 km (23 mi) S of here earthquakes near Clark County
Beaver County, OK 55 km (34 mi) ENE of here earthquakes near Beaver County
Meade County, KS 56 km (35 mi) SE of here earthquakes near Meade County
Comanche County, KS 65 km (40 mi) WSW of here earthquakes near Comanche County
Ellis County, OK 77 km (48 mi) N of here earthquakes near Ellis County

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

Aftershocks so far

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

  1. 2.0 12 km WNW of Knowles, Oklahoma
  2. 2.0 11 km NE of May, Oklahoma
  3. 1.6 10 km NE of May, Oklahoma
  4. 2.4 12 km NW of Knowles, Oklahoma
  5. 2.7 13 km WNW of Knowles, Oklahoma
  6. 1.5 11 km WNW of Knowles, Oklahoma
  7. 2.3 13 km WNW of Knowles, Oklahoma
  8. 2.0 18 km SW of May, Oklahoma
  9. 1.6 5 km NW of Fort Supply, Oklahoma
  10. 1.6 14 km NE of Fort Supply, Oklahoma
  11. 1.8 14 km SE of Buffalo, Oklahoma
  12. 1.6 5 km NNE of Fort Supply, Oklahoma
  13. 1.6 10 km NNE of May, Oklahoma
  14. 1.9 9 km SW of Englewood, Kansas
  15. 1.8 9 km W of Buffalo, 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.