QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Enid, OK

No earthquake was likely felt in Enid in the 24 hours to 8:41 am CST (14:41 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 2.5 earthquake was recorded 38 km (24 mi) north-northeast of Enid, OK, at 11:53 pm CDT on 11 September 2016 (04:53 UTC), 8.0 km deep. 1 person has reported feeling it to USGS.

USGS: 10 km ESE of Jefferson, Oklahoma

37 km (23 mi) NNE of Enid, OK · 138 km (86 mi) N of Oklahoma City, OK

11:53 pm CDT, Sep 11, 2016 · · 8.0 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Grant County 14 kmGarfield County 37 kmKay County 49 kmNoble County 53 kmAlfalfa County 58 kmSumner County 62 kmHarper County 64 kmKingfisher County 87 kmMajor County 88 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
11:53 pm CDT on 11 September 2016 ()
Where
38 km (24 mi) north-northeast of Enid, OK · earthquakes near Enid
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.5 (ml)
Depth
8.0 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Grant County, 14 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3627 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 Enid, 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: Blackwell 37 km, intensity II · Caldwell 37 km, intensity II · Enid 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 2016-07-17 — 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 36.7003, -97.6783. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Grant County, OK 14 km (9 mi) NW earthquakes near Grant County
Garfield County, OK 37 km (23 mi) SSW earthquakes near Garfield County
Kay County, OK 49 km (31 mi) ENE earthquakes near Kay County
Noble County, OK 53 km (33 mi) SE earthquakes near Noble County
Alfalfa County, OK 58 km (36 mi) W earthquakes near Alfalfa County
Sumner County, KS 62 km (38 mi) NNE earthquakes near Sumner 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. 2.5 6 km NNE of Wakita, Oklahoma
  2. 1.5 7 km SSE of Bluff City, Kansas
  3. 3.1 2 km NNW of Fairmont, Oklahoma
  4. 1.8 4 km WSW of Bluff City, Kansas
  5. 2.8 5 km NNE of Wakita, Oklahoma
  6. 2.5 8 km ESE of Wakita, Oklahoma
  7. 2.7 9 km SE of Wakita, Oklahoma
  8. 2.8 4 km WNW of Lucien, Oklahoma
  9. 2.9 5 km WNW of Lucien, Oklahoma
  10. 2.7 8 km WNW of Deer Creek, Oklahoma
  11. 1.9 11 km WNW of Caldwell, Kansas
  12. 2.3 7 km WNW of Renfrow, Oklahoma
  13. 2.7 2 km NW of Deer Creek, Oklahoma
  14. 2.7 Oklahoma
  15. 3.6 2 km NW of Deer Creek, 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.