QuakeIndex

Earthquake · reviewed by a seismologist

M 4.2ml

Earthquake near Luther, OK

No earthquake was likely felt in Luther in the 24 hours to 6:28 am CST (12:28 UTC). The last one was M 3.4, 77 km (48 mi) W, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Luther

This page: a magnitude 4.2 earthquake was recorded in Luther, OK, at 5:27 pm CDT on 7 April 2016 (22:27 UTC), 6.1 km deep. 197 people have reported feeling it to USGS.

USGS: 1 km E of Luther, Oklahoma

38 km (23 mi) NE of Oklahoma City, OK · 22 km (13 mi) E of Edmond, OK

5:27 pm CDT, Apr 7, 2016 · · 6.1 km deep · released about 30 tons of TNT

10 km30 km60 km120 km N Oklahoma County 24 kmLincoln County 27 kmLogan County 38 kmPayne County 50 kmCleveland County 52 kmPottawatomie County 54 kmCanadian County 74 kmKingfisher County 76 kmMcClain County 76 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
5:27 pm CDT on 7 April 2016 ()
Where
in Luther, OK · earthquakes near Luther
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 4.2 (ml)
Depth
6.1 km below the surface
Felt
197 reports · strongest reported intensity V
Measured shaking
intensity IV (ShakeMap)
USGS impact alert
green
Nearest
Oklahoma County, 24 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2427 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. 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: Luther in town, intensity V · Choctaw 20 km, intensity IV · Chandler 27 km, intensity IV · Edmond 27 km, intensity IV · Midwest City 31 km, intensity IV · Langston 32 km, intensity IV · Guthrie 33 km, intensity IV · Perkins 37 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 2016-01-01.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.7 8 km NW of Prague, Oklahoma · 40 km ESE of this epicentre

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 35.6619, -97.1741. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Oklahoma County, OK 24 km (15 mi) WSW earthquakes near Oklahoma County
Lincoln County, OK 27 km (17 mi) E earthquakes near Lincoln County
Logan County, OK 38 km (23 mi) NW earthquakes near Logan County
Payne County, OK 50 km (31 mi) NNE earthquakes near Payne County
Cleveland County, OK 52 km (33 mi) SSW earthquakes near Cleveland County
Pottawatomie County, OK 54 km (33 mi) SSE earthquakes near Pottawatomie County

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

Aftershocks so far

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

  1. 2.6 2 km NE of Meridian, Oklahoma
  2. 2.7 5 km SE of Guthrie, Oklahoma
  3. 2.7 3 km NE of Coyle, Oklahoma
  4. 2.6 2 km E of Luther, Oklahoma
  5. 2.6 5 km S of Cushing, Oklahoma
  6. 2.7 5 km ENE of Crescent, Oklahoma
  7. 2.9 4 km NNE of Coyle, Oklahoma
  8. 2.7 4 km WSW of Fallis, Oklahoma
  9. 3.1 4 km SW of Fallis, Oklahoma
  10. 2.7 4 km SW of Fallis, Oklahoma
  11. 2.8 4 km N of Choctaw, Oklahoma
  12. 2.6 Oklahoma
  13. 3.0 Oklahoma
  14. 3.1 4 km E of Edmond, Oklahoma
  15. 3.2 3 km NNE of Nicoma Park, 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.