QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

Earthquake near Enid, OK

No earthquake was likely felt in Enid in the 24 hours to 6:29 am CST (12:29 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 2.7 earthquake was recorded 37 km (23 mi) north-northeast of Enid, OK, at 3:50 am CDT on 15 May 2016 (08:50 UTC), 5.7 km deep. 1 person has reported feeling it to USGS.

USGS: 9 km W of Lamont, Oklahoma

36 km (22 mi) NNE of Enid, OK · 136 km (85 mi) N of Oklahoma City, OK

3:50 am CDT, May 15, 2016 · · 5.7 km deep · released about 340 lb of TNT

10 km30 km60 km120 km N Grant County 16 kmGarfield County 36 kmKay County 49 kmNoble County 51 kmAlfalfa County 59 kmSumner County 63 kmHarper County 66 kmKingfisher County 85 kmLogan 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
3:50 am CDT on 15 May 2016 ()
Where
37 km (23 mi) north-northeast of Enid, OK · earthquakes near Enid
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.7 (ml)
Depth
5.7 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Grant County, 16 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1562 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 56 km (35 mi) from the epicentre. In Enid, 37 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 36 km, intensity II · Enid 37 km, intensity II · Caldwell 39 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 36.6848, -97.6642. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Grant County, OK 16 km (10 mi) NW earthquakes near Grant County
Garfield County, OK 36 km (22 mi) SSW earthquakes near Garfield County
Kay County, OK 49 km (30 mi) ENE earthquakes near Kay County
Noble County, OK 51 km (32 mi) SE earthquakes near Noble County
Alfalfa County, OK 59 km (37 mi) W earthquakes near Alfalfa County
Sumner County, KS 63 km (39 mi) NNE earthquakes near Sumner 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. 1.8 4 km S of Caldwell, Kansas
  2. 3.6 5 km WNW of Lucien, Oklahoma
  3. 3.3 6 km NE of Hunter, Oklahoma
  4. 2.9 7 km E of Nescatunga, Oklahoma
  5. 2.9 Oklahoma
  6. 2.7 2 km NNW of Lamont, Oklahoma
  7. 2.8 5 km WNW of Lucien, Oklahoma
  8. 2.5 5 km E of Pond Creek, Oklahoma
  9. 3.0 5 km E of Pond Creek, Oklahoma
  10. 3.2 2 km NW of Fairmont, Oklahoma
  11. 2.5 5 km NW of Kremlin, Oklahoma
  12. 2.7 5 km SSE of Manchester, Oklahoma
  13. 3.2 4 km SSE of Covington, Oklahoma
  14. 1.6 11 km SE of Bluff City, Kansas
  15. 2.7 8 km ESE of Pond 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.