QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Oklahoma City, OK

No earthquake was likely felt in Oklahoma City in the 24 hours to 10:08 am CST (16:08 UTC). The last one was M 3.4, 50 km (31 mi) WNW, at 5:53 am CST on 7 November 2026, estimated intensity III (weak) in town; 23 felt reports to USGS. Every earthquake near Oklahoma City

This page: a magnitude 2.5 earthquake was recorded 38 km (24 mi) north of Oklahoma City, OK, at 12:35 am CDT on 18 May 2017 (05:35 UTC), 6.3 km deep. 1 person has reported feeling it to USGS.

USGS: 6 km S of Cedar Valley, Oklahoma

38 km (24 mi) N of Oklahoma City, OK · 20 km (12 mi) NW of Edmond, OK

12:35 am CDT, May 18, 2017 · · 6.3 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Logan County 15 kmOklahoma County 31 kmKingfisher County 38 kmCanadian County 48 kmPayne County 60 kmLincoln County 62 kmGarfield County 67 kmCleveland County 70 kmNoble County 70 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
12:35 am CDT on 18 May 2017 ()
Where
38 km (24 mi) north of Oklahoma City, OK · earthquakes near Oklahoma City
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.5 (ml)
Depth
6.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Logan County, 15 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3386 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 46 km (29 mi) from the epicentre. In Oklahoma City, 38 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: Guthrie 14 km, intensity III · Crescent 16 km, intensity III · Edmond 19 km, intensity III · Langston 31 km, intensity II · Bethany 33 km, intensity II · Kingfisher 34 km, intensity II · Luther 36 km, intensity II · Oklahoma City 38 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 2016-04-07 — 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 35.8085, -97.5553. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Logan County, OK 15 km (9 mi) NE earthquakes near Logan County
Oklahoma County, OK 31 km (19 mi) SSE earthquakes near Oklahoma County
Kingfisher County, OK 38 km (23 mi) WNW earthquakes near Kingfisher County
Canadian County, OK 48 km (30 mi) SW earthquakes near Canadian County
Payne County, OK 60 km (37 mi) ENE earthquakes near Payne County
Lincoln County, OK 62 km (38 mi) E earthquakes near Lincoln County

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

Aftershocks so far

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

  1. 2.6 4 km NE of Marshall, Oklahoma
  2. 2.3 9 km SSE of Covington, Oklahoma
  3. 2.6 12 km ESE of Dover, Oklahoma
  4. 2.3 7 km NE of Harrah, Oklahoma
  5. 2.1 5 km SSE of Guthrie, Oklahoma
  6. 2.1 6 km ENE of Edmond, Oklahoma
  7. 2.5 5 km SE of Guthrie, Oklahoma
  8. 2.6 2 km E of Luther, Oklahoma
  9. 3.5 6 km ENE of Edmond, Oklahoma
  10. 3.1 5 km SSE of Guthrie, Oklahoma
  11. 1.7 6 km ENE of Edmond, Oklahoma
  12. 3.3 6 km W of Arcadia, Oklahoma
  13. 4.2 6 km ENE of Edmond, Oklahoma
  14. 3.0 6 km ENE of Edmond, Oklahoma
  15. 3.3 6 km W of Arcadia, 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.