QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

8 km SSE of Hitchcock, Oklahoma

· 6.9 km deep · released about 680 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Blaine County 12 kmKingfisher County 33 kmCanadian County 49 kmMajor County 50 kmDewey County 65 kmCuster County 69 kmGarfield County 70 kmLogan County 77 kmCaddo County 82 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 2.9 (ml)
Depth
6.9 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Blaine County, 12 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3348 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 35.9032, -98.3019. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Blaine County, OK 12 km (7 mi) ENE of here earthquakes near Blaine County
Kingfisher County, OK 33 km (21 mi) W of here earthquakes near Kingfisher County
Canadian County, OK 49 km (31 mi) NW of here earthquakes near Canadian County
Major County, OK 50 km (31 mi) SSE of here earthquakes near Major County
Dewey County, OK 65 km (40 mi) E of here earthquakes near Dewey County
Custer County, OK 69 km (43 mi) ENE of here earthquakes near Custer County

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

Aftershocks so far

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

  1. 2.4 4 km NNW of Dover, Oklahoma
  2. 3.5 6 km N of Dover, Oklahoma
  3. 2.5 4 km N of Dover, Oklahoma
  4. 2.3 4 km N of Dover, Oklahoma
  5. 3.7 5 km N of Dover, Oklahoma
  6. 3.7 4 km N of Dover, Oklahoma
  7. 2.8 5 km N of Dover, Oklahoma
  8. 2.6 5 km N of Dover, Oklahoma
  9. 2.6 5 km N of Dover, Oklahoma
  10. 2.7 5 km N of Dover, Oklahoma
  11. 3.2 5 km N of Dover, Oklahoma
  12. 3.3 5 km N of Dover, Oklahoma
  13. 2.5 6 km N of Dover, Oklahoma
  14. 2.5 5 km N of Dover, Oklahoma
  15. 3.0 5 km N of Dover, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.1 on 2016-01-18 — it released about 63 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.