QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Yukon, OK

No earthquake was likely felt in Yukon in the 24 hours to 4:16 pm CST (22:16 UTC). The last one was M 3.4, 28 km (17 mi) WNW, at 5:53 am CST on 7 November 2026, estimated intensity III (weak) in town; 23 felt reports to USGS. Every earthquake near Yukon

This page: a magnitude 2.4 earthquake was recorded 5 km (3 mi) south of Yukon, OK, at 7:06 pm CDT on 28 August 2018 (00:06 UTC), 6.4 km deep. 6 people have reported feeling it to USGS.

USGS: 5 km S of Yukon, Oklahoma

23 km (15 mi) W of Oklahoma City, OK

7:06 pm CDT, Aug 28, 2018 · · 6.4 km deep · released about 120 lb of TNT

Every earthquake near Yukon Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Canadian County 21 kmOklahoma County 35 kmCleveland County 49 kmGrady County 50 kmKingfisher County 56 kmMcClain County 57 kmLogan County 58 kmCaddo County 64 kmBlaine County 75 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
7:06 pm CDT on 28 August 2018 ()
Where
5 km (3 mi) south of Yukon, OK · earthquakes near Yukon
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.4 (ml)
Depth
6.4 km below the surface
Felt
6 reports · strongest reported intensity IV
Nearest
Canadian County, 21 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2926 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 41 km (25 mi) from the epicentre. In Yukon, 5 km away, the estimate is intensity III (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: Yukon 5 km, intensity III · Mustang 9 km, intensity III · Bethany 14 km, intensity III · Union City 17 km, intensity II · El Reno 18 km, intensity II · Tuttle 19 km, intensity II · Minco 23 km, intensity II · Oklahoma City 23 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 4.2 on 2016-01-01 — about 500 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 35.4589, -97.7723. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Canadian County, OK 21 km (13 mi) WNW earthquakes near Canadian County
Oklahoma County, OK 35 km (21 mi) ENE earthquakes near Oklahoma County
Cleveland County, OK 49 km (31 mi) SE earthquakes near Cleveland County
Grady County, OK 50 km (31 mi) SSW earthquakes near Grady County
Kingfisher County, OK 56 km (35 mi) NNW earthquakes near Kingfisher County
McClain County, OK 57 km (36 mi) SSE earthquakes near McClain County

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

Aftershocks so far

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

  1. 2.5 10 km S of Okarche, Oklahoma
  2. 2.4 5 km SW of Tuttle, Oklahoma
  3. 2.3 7 km WSW of Tuttle, Oklahoma
  4. 2.3 5 km WSW of Tuttle, Oklahoma
  5. 2.1 6 km WSW of Tuttle, Oklahoma
  6. 2.1 6 km WSW of Tuttle, Oklahoma
  7. 2.3 5 km SW of Tuttle, Oklahoma
  8. 2.8 4 km S of Minco, Oklahoma
  9. 2.4 5 km SW of Tuttle, Oklahoma
  10. 2.0 15 km W of Union City, Oklahoma
  11. 2.5 6 km SSW of Blanchard, Oklahoma
  12. 2.1 5 km W of Arcadia, Oklahoma
  13. 2.5 5 km WSW of Arcadia, Oklahoma
  14. 2.2 6 km W of Arcadia, Oklahoma
  15. 1.6 2 km SW of Okarche, 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.