QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

Earthquake near Okeene, OK

No earthquake was likely felt in Okeene in the 24 hours to 2:19 pm CST (20:19 UTC). The last one was M 3.4, 61 km (38 mi) SSE, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Okeene

This page: a magnitude 2.6 earthquake was recorded 5 km (3 mi) north-northeast of Okeene, OK, at 11:02 am CST on 6 January 2018 (17:02 UTC), 6.8 km deep. 2 people have reported feeling it to USGS.

USGS: 4 km NNE of Okeene, Oklahoma

47 km (29 mi) SW of Enid, OK · 104 km (65 mi) NW of Oklahoma City, OK

11:02 am CST, Jan 6, 2018 · · 6.8 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Major County 28 kmBlaine County 33 kmKingfisher County 40 kmGarfield County 52 kmAlfalfa County 64 kmDewey County 67 kmCanadian County 74 kmLogan County 80 kmWoods 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
11:02 am CST on 6 January 2018 ()
Where
5 km (3 mi) north-northeast of Okeene, OK · earthquakes near Okeene
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.6 (ml)
Depth
6.8 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Major County, 28 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3155 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 51 km (32 mi) from the epicentre. In Okeene, 5 km away, the estimate is intensity III (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Okeene 5 km, intensity III · Fairview 21 km, intensity III · Watonga 36 km, intensity II · Hennessey 36 km, intensity II · Helena 44 km, intensity II · Enid 46 km, intensity II · Kingfisher 46 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.1 on 2016-01-18 — about 180 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 36.1534, -98.2957. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Major County, OK 28 km (18 mi) NW earthquakes near Major County
Blaine County, OK 33 km (20 mi) SSW earthquakes near Blaine County
Kingfisher County, OK 40 km (25 mi) SE earthquakes near Kingfisher County
Garfield County, OK 52 km (32 mi) ENE earthquakes near Garfield County
Alfalfa County, OK 64 km (40 mi) N earthquakes near Alfalfa County
Dewey County, OK 67 km (42 mi) WSW earthquakes near Dewey County

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

Aftershocks so far

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

  1. 3.1 16 km ENE of Thomas, Oklahoma
  2. 2.9 7 km E of Hennessey, Oklahoma
  3. 2.5 5 km SE of Fairview, Oklahoma
  4. 3.0 10 km E of Dover, Oklahoma
  5. 2.5 4 km N of Dover, Oklahoma
  6. 2.2 8 km ENE of Greenfield, Oklahoma
  7. 2.6 5 km N of Dover, Oklahoma
  8. 3.4 7 km ENE of Hennessey, Oklahoma
  9. 3.2 15 km WSW of Watonga, Oklahoma
  10. 2.6 6 km N of Dover, Oklahoma
  11. 2.5 6 km N of Dover, Oklahoma
  12. 2.7 9 km E of Dover, Oklahoma
  13. 2.5 10 km E of Dover, Oklahoma
  14. 2.3 14 km ENE of Thomas, Oklahoma
  15. 3.2 6 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.

On USGS

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