QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Enid, OK

No earthquake was likely felt in Enid in the 24 hours to 5:49 pm CST (23:49 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 1.8 earthquake was recorded 39 km (24 mi) north-northeast of Enid, OK, at 2:39 am CDT on 17 May 2023 (07:39 UTC), 7.1 km deep. 2 people have reported feeling it to USGS.

USGS: 10 km W of Lamont, Oklahoma

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

2:39 am CDT, May 17, 2023 · · 7.1 km deep · released about 17 lb of TNT

10 km30 km60 km120 km N Grant County 14 kmGarfield County 38 kmKay County 48 kmNoble County 52 kmAlfalfa County 58 kmSumner County 61 kmHarper County 64 kmKingfisher County 87 kmMajor County 89 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
2:39 am CDT on 17 May 2023 ()
Where
39 km (24 mi) north-northeast of Enid, OK · earthquakes near Enid
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.8 (ml)
Depth
7.1 km below the surface
Felt
2 reports · strongest reported intensity I
Nearest
Grant County, 14 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1274 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 17 km (11 mi) from the epicentre. In Enid, 39 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.

How big was it?

This earthquake released about 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× the energy of this one
  4. This earthquake M 1.8 about 17 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 14,000 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 36.7038, -97.6692. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Grant County, OK 14 km (9 mi) NW earthquakes near Grant County
Garfield County, OK 38 km (23 mi) SSW earthquakes near Garfield County
Kay County, OK 48 km (30 mi) ENE earthquakes near Kay County
Noble County, OK 52 km (33 mi) SE earthquakes near Noble County
Alfalfa County, OK 58 km (36 mi) W earthquakes near Alfalfa County
Sumner County, KS 61 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

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

  1. 1.7 4 km W of Lucien, Oklahoma
  2. 1.8 6 km SSE of Manchester, Oklahoma
  3. 1.7 7 km SSE of Manchester, Oklahoma
  4. 1.9 7 km SSE of Manchester, Oklahoma
  5. 2.4 3 km NE of Marland, Oklahoma
  6. 2.4 12 km N of Perry, Oklahoma
  7. 2.0 3 km NNE of Marland, Oklahoma
  8. 2.3 8 km N of Nash, Oklahoma
  9. 1.7 10 km W of Lamont, Oklahoma
  10. 1.5 9 km NW of Perry, Oklahoma
  11. 1.5 9 km S of Bluff City, Kansas
  12. 1.9 7 km ESE of Medford, Oklahoma
  13. 1.9 7 km E of Nescatunga, Oklahoma
  14. 2.0 3 km ENE of Medford, Oklahoma
  15. 1.6 9 km W of Jefferson, 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.