QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Enid, OK

No earthquake was likely felt in Enid in the 24 hours to 9:23 am CST (15:23 UTC). The last one was M 3.4, 89 km (55 mi) S, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Enid

This page: a magnitude 2.4 earthquake was recorded 28 km (17 mi) west-southwest of Enid, OK, at 11:27 pm CDT on 12 July 2018 (04:27 UTC), 5.7 km deep.

USGS: 7 km NNE of Ames, Oklahoma

29 km (18 mi) WSW of Enid, OK · 111 km (69 mi) NNW of Oklahoma City, OK

11:27 pm CDT, Jul 12, 2018 · · 5.7 km deep · released about 120 lb of TNT

Every earthquake near Enid Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Major County 34 kmGarfield County 35 kmKingfisher County 45 kmAlfalfa County 49 kmBlaine County 54 kmGrant County 63 kmWoods County 77 kmLogan County 78 kmNoble County 84 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
11:27 pm CDT on 12 July 2018 ()
Where
28 km (17 mi) west-southwest of Enid, OK · earthquakes near Enid
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.4 (ml)
Depth
5.7 km below the surface
Felt
no reports yet
Nearest
Major County, 34 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2962 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 41 km (25 mi) from the epicentre. In Enid, 28 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: Okeene 25 km, intensity II · Enid 28 km, intensity II · Helena 28 km, intensity II · Fairview 28 km, intensity II · Hennessey 33 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 2018-03-04 — about 500 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 36.3111, -98.1680. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Major County, OK 34 km (21 mi) W earthquakes near Major County
Garfield County, OK 35 km (22 mi) ENE earthquakes near Garfield County
Kingfisher County, OK 45 km (28 mi) SSE earthquakes near Kingfisher County
Alfalfa County, OK 49 km (30 mi) NNW earthquakes near Alfalfa County
Blaine County, OK 54 km (33 mi) SSW earthquakes near Blaine County
Grant County, OK 63 km (39 mi) NNE earthquakes near Grant County

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

Aftershocks so far

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

  1. 2.3 5 km N of Ames, Oklahoma
  2. 2.0 2 km NW of Jet, Oklahoma
  3. 3.3 4 km ESE of Meno, Oklahoma
  4. 2.3 1 km ENE of Douglas, Oklahoma
  5. 3.6 4 km ENE of Douglas, Oklahoma
  6. 2.3 8 km SW of Goltry, Oklahoma
  7. 1.9 3 km SE of Ringwood, Oklahoma
  8. 3.0 4 km ESE of Meno, Oklahoma
  9. 2.0 8 km NNW of Meno, Oklahoma
  10. 2.3 2 km ESE of Hennessey, Oklahoma
  11. 2.6 2 km SE of Hennessey, OK
  12. 2.2 6 km ESE of Cleo Springs, Oklahoma
  13. 2.0 5 km ESE of Cleo Springs, Oklahoma
  14. 3.0 3 km ESE of Hennessey, Oklahoma
  15. 3.1 5 km ESE of Cleo Springs, 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.