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 2:23 pm CST (20:23 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 49 km (30 mi) north of Enid, OK, at 4:21 pm CDT on 14 June 2017 (21:21 UTC), 4.9 km deep.

USGS: 5 km WNW of Medford, Oklahoma

47 km (29 mi) N of Enid, OK · 104 km (65 mi) SSW of Wichita, KS

4:21 pm CDT, Jun 14, 2017 · · 4.9 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Grant County 4 kmHarper County 47 kmAlfalfa County 49 kmGarfield County 50 kmSumner County 53 kmKay County 58 kmNoble County 70 kmKingman 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
4:21 pm CDT on 14 June 2017 ()
Where
49 km (30 mi) north of Enid, OK · earthquakes near Enid
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.5 (ml)
Depth
4.9 km below the surface
Felt
no reports yet
Nearest
Grant County, 4 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3372 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 46 km (29 mi) from the epicentre. In Enid, 49 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 28 km, intensity II · Anthony 42 km, intensity II · Blackwell 45 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 4.1 on 2017-03-29 — about 250 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 36.8264, -97.7904. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Grant County, OK 4 km (3 mi) S earthquakes near Grant County
Harper County, KS 47 km (29 mi) NNW earthquakes near Harper County
Alfalfa County, OK 49 km (30 mi) WSW earthquakes near Alfalfa County
Garfield County, OK 50 km (31 mi) S earthquakes near Garfield County
Sumner County, KS 53 km (33 mi) NNE earthquakes near Sumner County
Kay County, OK 58 km (36 mi) E earthquakes near Kay County

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

Aftershocks so far

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

  1. 3.3 10 km N of Caldwell, Kansas
  2. 1.5 7 km SSE of Anthony, Kansas
  3. 1.5 10 km WNW of Caldwell, Kansas
  4. 2.7 10 km WNW of Caldwell, Kansas
  5. 1.7 10 km N of Caldwell, Kansas
  6. 1.7 6 km E of Bluff City, Kansas
  7. 1.6 10 km N of Caldwell, Kansas
  8. 1.9 10 km N of Caldwell, Kansas
  9. 2.0 11 km W of Caldwell, Kansas
  10. 3.3 9 km N of Nash, Oklahoma
  11. 1.6 5 km SSW of Bluff City, Kansas
  12. 2.6 9 km W of Bluff City, Kansas
  13. 2.4 6 km E of Manchester, Oklahoma
  14. 1.6 3 km SSE of Danville, Kansas
  15. 1.6 7 km ESE of Bluff City, Kansas

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.