QuakeIndex

Earthquake · reviewed by a seismologist

M 4.2mwr

Earthquake near Edmond, OK

No earthquake was likely felt in Edmond in the 24 hours to 4:54 pm CST (22:54 UTC). The last one was M 3.4, 51 km (32 mi) W, at 5:53 am CST on 7 November 2026, estimated intensity III (weak) in town; 23 felt reports to USGS. Every earthquake near Edmond

This page: a magnitude 4.2 earthquake was recorded 7 km (4 mi) east-northeast of Edmond, OK, at 9:56 pm CDT on 2 August 2017 (02:56 UTC), 5.0 km deep. 1,321 people have reported feeling it to USGS.

USGS: 6 km ENE of Edmond, Oklahoma

25 km (15 mi) NNE of Oklahoma City, OK · in Edmond, OK

9:56 pm CDT, Aug 2, 2017 · · 5.0 km deep · released about 30 tons of TNT

Every earthquake near Edmond Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Oklahoma County 13 kmLogan County 27 kmLincoln County 47 kmCleveland County 52 kmCanadian County 54 kmKingfisher County 57 kmPayne County 60 kmPottawatomie County 65 kmMcClain County 73 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
9:56 pm CDT on 2 August 2017 ()
Where
7 km (4 mi) east-northeast of Edmond, OK · earthquakes near Edmond
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 4.2 (mwr)
Depth
5.0 km below the surface
Felt
1,321 reports · strongest reported intensity VI
Measured shaking
intensity IV (ShakeMap)
USGS impact alert
green
Nearest
Oklahoma County, 13 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2428 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

At this magnitude and depth, people at rest would likely notice it out to about 521 km (324 mi) from the epicentre. In Edmond, 7 km away, the estimate is intensity V (moderate). 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: Edmond 7 km, intensity V · Luther 19 km, intensity IV · Choctaw 23 km, intensity IV · Guthrie 23 km, intensity IV · Midwest City 25 km, intensity IV · Oklahoma City 25 km, intensity IV · Bethany 27 km, intensity IV · Langston 33 km, intensity IV. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 30 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 5,600× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 250× the energy of this one
  3. Magna, Utah 2020 M 5.7 180× the energy of this one
  4. This earthquake M 4.2 about 30 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 63× more

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

Tied for the largest within 50 km (31 mi) since 2016, with M 4.2 on 2016-04-07.

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 35.6720, -97.4047. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Oklahoma County, OK 13 km (8 mi) S earthquakes near Oklahoma County
Logan County, OK 27 km (17 mi) N earthquakes near Logan County
Lincoln County, OK 47 km (29 mi) E earthquakes near Lincoln County
Cleveland County, OK 52 km (32 mi) S earthquakes near Cleveland County
Canadian County, OK 54 km (34 mi) WSW earthquakes near Canadian County
Kingfisher County, OK 57 km (35 mi) WNW earthquakes near Kingfisher County

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

Aftershocks so far

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

  1. 2.5 4 km NE of Meridian, Oklahoma
  2. 2.3 1 km N of Jones, Oklahoma
  3. 2.5 4 km NNE of Dale, Oklahoma
  4. 2.2 2 km SW of Yukon, Oklahoma
  5. 2.4 5 km SE of Guthrie, Oklahoma
  6. 3.3 7 km NNE of Lake Aluma, Oklahoma
  7. 2.8 6 km W of Arcadia, Oklahoma
  8. 2.9 6 km W of Arcadia, Oklahoma
  9. 2.4 6 km W of Arcadia, Oklahoma
  10. 2.8 7 km NNE of Guthrie, Oklahoma
  11. 2.4 12 km ESE of Dover, Oklahoma
  12. 2.6 10 km W of Mulhall, Oklahoma
  13. 2.6 5 km W of Arcadia, Oklahoma
  14. 2.5 3 km ESE of Carney, Oklahoma
  15. 3.5 3 km SE of Carney, 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.