QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

Earthquake near Enid, OK

No earthquake was likely felt in Enid in the 24 hours to 10:47 am CST (16:47 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 2.8 earthquake was recorded 33 km (21 mi) west-southwest of Enid, OK, at 6:53 pm CST on 28 December 2016 (00:53 UTC), 5.3 km deep. 1 person has reported feeling it to USGS.

USGS: 7 km S of Ringwood, Oklahoma

34 km (21 mi) WSW of Enid, OK · 114 km (71 mi) NW of Oklahoma City, OK

6:53 pm CST, Dec 28, 2016 · · 5.3 km deep · released about 480 lb of TNT

Every earthquake near Enid Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Major County 28 kmGarfield County 41 kmAlfalfa County 47 kmKingfisher County 48 kmBlaine County 51 kmGrant County 67 kmWoods County 73 kmDewey County 79 kmLogan County 83 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
6:53 pm CST on 28 December 2016 ()
Where
33 km (21 mi) west-southwest of Enid, OK · earthquakes near Enid
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.8 (ml)
Depth
5.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Major County, 28 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3520 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 62 km (39 mi) from the epicentre. In Enid, 33 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: Fairview 22 km, intensity III · Okeene 23 km, intensity III · Helena 27 km, intensity III · Enid 33 km, intensity II · Hennessey 37 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 5.1 on 2016-02-13 — about 2,800 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 36.3092, -98.2339. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Major County, OK 28 km (17 mi) W earthquakes near Major County
Garfield County, OK 41 km (25 mi) E earthquakes near Garfield County
Alfalfa County, OK 47 km (29 mi) N earthquakes near Alfalfa County
Kingfisher County, OK 48 km (30 mi) SE earthquakes near Kingfisher County
Blaine County, OK 51 km (32 mi) SSW earthquakes near Blaine County
Grant County, OK 67 km (41 mi) NE earthquakes near Grant County

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

Aftershocks so far

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

  1. 2.6 3 km S of Hennessey, Oklahoma
  2. 2.7 15 km WNW of Canton, Oklahoma
  3. 3.0 15 km WNW of Canton, Oklahoma
  4. 2.4 8 km SE of Hitchcock, Oklahoma
  5. 2.5 8 km SSE of Hitchcock, Oklahoma
  6. 3.6 7 km ENE of Hennessey, Oklahoma
  7. 2.9 2 km NNW of Lambert, Oklahoma
  8. 2.8 9 km SE of Hitchcock, Oklahoma
  9. 2.7 14 km WNW of Canton, Oklahoma
  10. 2.6 2 km NNW of Lambert, Oklahoma
  11. 2.9 7 km S of Dacoma, Oklahoma
  12. 2.9 6 km NW of Jet, Oklahoma
  13. 2.7 17 km SE of Waynoka, Oklahoma
  14. 2.6 8 km SW of Goltry, Oklahoma
  15. 3.8 2 km NNW of Lambert, 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.