QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3mb_lg

Earthquake near Enid, OK

No earthquake was likely felt in Enid in the 24 hours to 12:53 am CST (06:53 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 2.3 earthquake was recorded 40 km (25 mi) north-northeast of Enid, OK, at 4:51 pm CDT on 17 May 2019 (21:51 UTC), 5.0 km deep. 7 people have reported feeling it to USGS.

USGS: 10 km E of Jefferson, Oklahoma

39 km (24 mi) NNE of Enid, OK · 140 km (87 mi) N of Oklahoma City, OK

4:51 pm CDT, May 17, 2019 · · 5.0 km deep · released about 85 lb of TNT

10 km30 km60 km120 km N Grant County 13 kmGarfield County 39 kmKay County 48 kmNoble County 54 kmAlfalfa County 58 kmSumner County 60 kmHarper County 63 kmKingfisher County 89 kmMajor County 90 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
4:51 pm CDT on 17 May 2019 ()
Where
40 km (25 mi) north-northeast of Enid, OK · earthquakes near Enid
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.3 (mb_lg)
Depth
5.0 km below the surface
Felt
7 reports · strongest reported intensity IV
Nearest
Grant County, 13 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2653 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 37 km (23 mi) from the epicentre. In Enid, 40 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: Caldwell 35 km, intensity II · Blackwell 36 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 4.6 on 2018-04-07 — 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 36.7177, -97.6721. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Grant County, OK 13 km (8 mi) NW earthquakes near Grant County
Garfield County, OK 39 km (24 mi) SSW earthquakes near Garfield County
Kay County, OK 48 km (30 mi) ENE earthquakes near Kay County
Noble County, OK 54 km (33 mi) SE earthquakes near Noble County
Alfalfa County, OK 58 km (36 mi) W earthquakes near Alfalfa County
Sumner County, KS 60 km (37 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 9 km W of Lamont, Oklahoma
  2. 2.0 10 km ESE of Jefferson, Oklahoma
  3. 1.5 5 km WNW of Lucien, Oklahoma
  4. 1.9 2 km NE of Fairmont, Oklahoma
  5. 2.2 5 km SSW of Fairmont, Oklahoma
  6. 1.8 4 km E of Breckinridge, Oklahoma
  7. 1.9 9 km ESE of Jefferson, Oklahoma
  8. 1.9 5 km SSW of Fairmont, Oklahoma
  9. 2.9 5 km SSW of Fairmont, Oklahoma
  10. 3.0 5 km WNW of Lucien, Oklahoma
  11. 2.0 5 km WNW of Lucien, Oklahoma
  12. 1.7 8 km NW of Medford, Oklahoma
  13. 1.7 5 km SSW of Fairmont, Oklahoma
  14. 1.7 5 km SSW of Fairmont, Oklahoma
  15. 2.2 5 km SSW of Fairmont, 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.