QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Edmond, OK

No earthquake was likely felt in Edmond in the 24 hours to 4:53 pm CST (22:53 UTC). The last one was M 3.4, 51 km (32 mi) W, at 5:53 am CST on 7 November 2026, estimated intensity III (weak) in town; 23 felt reports to USGS. Every earthquake near Edmond

This page: a magnitude 2.5 earthquake was recorded 46 km (28 mi) northwest of Edmond, OK, at 4:01 pm CST on 16 February 2018 (22:01 UTC), 8.0 km deep.

USGS: 10 km E of Dover, Oklahoma

62 km (38 mi) NNW of Oklahoma City, OK · 48 km (30 mi) NW of Edmond, OK

4:01 pm CST, Feb 16, 2018 · · 8.0 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Kingfisher County 13 kmLogan County 31 kmGarfield County 45 kmCanadian County 51 kmOklahoma County 58 kmBlaine County 58 kmNoble County 68 kmPayne County 74 kmMajor County 77 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
4:01 pm CST on 16 February 2018 ()
Where
46 km (28 mi) northwest of Edmond, OK · earthquakes near Edmond
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.5 (ml)
Depth
8.0 km below the surface
Felt
no reports yet
Nearest
Kingfisher County, 13 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3103 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 45 km (28 mi) from the epicentre. In Edmond, 46 km away, the estimate is intensity II (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: Kingfisher 18 km, intensity III · Hennessey 18 km, intensity III · Crescent 18 km, intensity III · Okarche 32 km, intensity II · Guthrie 35 km, intensity II · Edmond 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 170 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 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 4.2 on 2016-01-01 — about 350 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 35.9735, -97.7931. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kingfisher County, OK 13 km (8 mi) WSW earthquakes near Kingfisher County
Logan County, OK 31 km (20 mi) ESE earthquakes near Logan County
Garfield County, OK 45 km (28 mi) N earthquakes near Garfield County
Canadian County, OK 51 km (32 mi) SSW earthquakes near Canadian County
Oklahoma County, OK 58 km (36 mi) SE earthquakes near Oklahoma County
Blaine County, OK 58 km (36 mi) W earthquakes near Blaine County

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

Aftershocks so far

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

  1. 3.1 6 km N of Dover, Oklahoma
  2. 3.5 6 km N of Dover, Oklahoma
  3. 1.9 5 km W of Lucien, Oklahoma
  4. 2.4 9 km NE of Marshall, Oklahoma
  5. 2.4 4 km ESE of Covington, Oklahoma
  6. 1.8 4 km WNW of Lucien, Oklahoma
  7. 1.8 4 km WNW of Lucien, Oklahoma
  8. 2.3 4 km W of Lucien, Oklahoma
  9. 1.8 4 km W of Lucien, Oklahoma
  10. 2.7 3 km WNW of Lucien, Oklahoma
  11. 2.0 5 km WNW of Lucien, Oklahoma
  12. 2.4 4 km W of Lucien, Oklahoma
  13. 2.6 8 km SW of Perry, Oklahoma
  14. 2.3 5 km ESE of Covington, Oklahoma
  15. 2.4 4 km ENE of Covington, 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.