QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Enid, OK

No earthquake was likely felt in Enid in the 24 hours to 10:47 am CST (16:47 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 1.6 earthquake was recorded 33 km (20 mi) northeast of Enid, OK, at 10:14 pm CST on 12 February 2021 (04:14 UTC), 7.4 km deep.

USGS: 6 km ENE of Hunter, Oklahoma

31 km (20 mi) NE of Enid, OK · 124 km (77 mi) N of Oklahoma City, OK

10:14 pm CST, Feb 12, 2021 · · 7.4 km deep · released about 7.1 lb of TNT

10 km30 km60 km120 km N Garfield County 28 kmGrant County 29 kmNoble County 39 kmKay County 48 kmAlfalfa County 67 kmSumner County 74 kmLogan County 75 kmKingfisher County 77 kmPayne County 79 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
10:14 pm CST on 12 February 2021 ()
Where
33 km (20 mi) northeast of Enid, OK · earthquakes near Enid
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.6 (ml)
Depth
7.4 km below the surface
Felt
no reports yet
Nearest
Garfield County, 28 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2092 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Enid, 33 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.

Earthquakes near other towns within 30 km: Tonkawa.

How big was it?

This earthquake released about 7.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.1 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 2018-04-09 — about 34,000 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 36.5802, -97.5928. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Garfield County, OK 28 km (18 mi) SW earthquakes near Garfield County
Grant County, OK 29 km (18 mi) NW earthquakes near Grant County
Noble County, OK 39 km (24 mi) SE earthquakes near Noble County
Kay County, OK 48 km (30 mi) ENE earthquakes near Kay County
Alfalfa County, OK 67 km (42 mi) WNW earthquakes near Alfalfa County
Sumner County, KS 74 km (46 mi) N earthquakes near Sumner County

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

Aftershocks so far

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

  1. 2.0 10 km ESE of Jefferson, Oklahoma
  2. 1.8 6 km NW of Lamont, Oklahoma
  3. 1.9 10 km ESE of Jefferson, Oklahoma
  4. 2.6 10 km NW of Perry, Oklahoma
  5. 1.6 11 km NNW of Medford, Oklahoma
  6. 1.9 6 km N of Nardin, Oklahoma
  7. 1.7 10 km ESE of Jefferson, Oklahoma
  8. 2.4 Oklahoma
  9. 1.5 4 km N of Breckinridge, Oklahoma
  10. 1.7 5 km NW of Bison, Oklahoma
  11. 1.6 8 km NW of Perry, Oklahoma
  12. 1.5 7 km ENE of Nescatunga, Oklahoma
  13. 1.7 9 km NW of Perry, Oklahoma
  14. 2.2 2 km ESE of Perry, Oklahoma
  15. 1.7 7 km N of Nardin, 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.