QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

24 km NE of Buffalo, Oklahoma

· 4.4 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Comanche County 27 kmHarper County 29 kmClark County 45 kmWoods County 57 kmWoodward County 63 kmKiowa County 66 kmBarber County 71 kmMeade County 89 kmEllis County 89 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
4.4 km below the surface
Felt
no reports yet
Nearest
Comanche County, 27 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1761 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 36.9763, -99.4185. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Comanche County, KS 27 km (17 mi) SSW of here earthquakes near Comanche County
Harper County, OK 29 km (18 mi) NE of here earthquakes near Harper County
Clark County, KS 45 km (28 mi) SE of here earthquakes near Clark County
Woods County, OK 57 km (35 mi) WNW of here earthquakes near Woods County
Woodward County, OK 63 km (39 mi) NNW of here earthquakes near Woodward County
Kiowa County, KS 66 km (41 mi) S of here earthquakes near Kiowa County

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

Aftershocks so far

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

  1. 2.0 11 km NE of May, Oklahoma
  2. 1.6 10 km NE of May, Oklahoma
  3. 1.6 10 km NNE of Freedom, Oklahoma
  4. 1.6 20 km NNW of Mooreland, Oklahoma
  5. 1.5 23 km NE of Fort Supply, Oklahoma
  6. 1.9 23 km NE of Fort Supply, Oklahoma
  7. 1.8 22 km WSW of Freedom, Oklahoma
  8. 1.8 23 km NE of Fort Supply, Oklahoma
  9. 1.5 18 km ENE of Fort Supply, Oklahoma
  10. 1.6 5 km NW of Fort Supply, Oklahoma
  11. 1.6 14 km NE of Fort Supply, Oklahoma
  12. 1.8 14 km SE of Buffalo, Oklahoma
  13. 1.6 5 km NNE of Fort Supply, Oklahoma
  14. 1.6 10 km NNE of May, Oklahoma
  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.