QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

Earthquake near Enid, OK

No earthquake was likely felt in Enid in the 24 hours to 5:45 pm CST (23:45 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 2.6 earthquake was recorded 32 km (20 mi) north-northeast of Enid, OK, at 4:54 pm CDT on 24 September 2016 (21:54 UTC), 3.8 km deep.

USGS: 5 km E of Pond Creek, Oklahoma

31 km (19 mi) NNE of Enid, OK · 134 km (83 mi) N of Oklahoma City, OK

4:54 pm CDT, Sep 24, 2016 · · 3.8 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Grant County 15 kmGarfield County 32 kmAlfalfa County 53 kmNoble County 54 kmKay County 55 kmHarper County 66 kmSumner County 67 kmKingfisher County 81 kmMajor 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
4:54 pm CDT on 24 September 2016 ()
Where
32 km (20 mi) north-northeast of Enid, OK · earthquakes near Enid
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.6 (ml)
Depth
3.8 km below the surface
Felt
no reports yet
Nearest
Grant County, 15 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3620 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 Enid, 32 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: Enid 32 km, intensity II · Caldwell 43 km, intensity II · Blackwell 43 km, intensity II · Helena 49 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 4.2 on 2016-07-17 — about 250 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 36.6614, -97.7350. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Grant County, OK 15 km (9 mi) NNW earthquakes near Grant County
Garfield County, OK 32 km (20 mi) S earthquakes near Garfield County
Alfalfa County, OK 53 km (33 mi) W earthquakes near Alfalfa County
Noble County, OK 54 km (34 mi) SE earthquakes near Noble County
Kay County, OK 55 km (34 mi) ENE earthquakes near Kay County
Harper County, KS 66 km (41 mi) NNW earthquakes near Harper County

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

Aftershocks so far

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

  1. 2.3 4 km ESE of Caldwell, Kansas
  2. 2.7 6 km NE of Billings, Oklahoma
  3. 2.5 7 km NE of Billings, Oklahoma
  4. 3.2 7 km NE of Billings, Oklahoma
  5. 2.5 6 km NE of Billings, Oklahoma
  6. 3.1 6 km NE of Billings, Oklahoma
  7. 1.8 5 km ESE of Caldwell, Kansas
  8. 2.2 9 km ESE of Bluff City, Kansas
  9. 3.0 8 km E of Nescatunga, Oklahoma
  10. 2.9 Oklahoma
  11. 1.5 6 km ENE of Caldwell, Kansas
  12. 3.5 6 km ENE of Covington, Oklahoma
  13. 1.9 7 km ESE of Bluff City, Kansas
  14. 1.7 9 km ESE of Bluff City, Kansas
  15. 1.5 9 km ESE of Bluff City, KS

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.