QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Perkins, OK

No earthquake was likely felt in Perkins in the 24 hours to 3:37 pm CST (21:37 UTC). The last one was M 3.4, 100 km (62 mi) WSW, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Perkins

This page: a magnitude 1.6 earthquake was recorded 5 km (3 mi) west of Perkins, OK, at 5:17 am CDT on 27 October 2019 (10:17 UTC), 7.7 km deep.

USGS: 4 km W of Perkins, Oklahoma

68 km (43 mi) NE of Oklahoma City, OK · 17 km (11 mi) S of Stillwater, OK

5:17 am CDT, Oct 27, 2019 · · 7.7 km deep · released about 6.4 lb of TNT

10 km30 km60 km120 km N Payne County 15 kmLogan County 34 kmLincoln County 35 kmNoble County 48 kmPawnee County 51 kmOklahoma County 55 kmCreek County 64 kmKingfisher County 76 kmGarfield County 77 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
5:17 am CDT on 27 October 2019 ()
Where
5 km (3 mi) west of Perkins, OK · earthquakes near Perkins
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.6 (ml)
Depth
7.7 km below the surface
Felt
no reports yet
Nearest
Payne County, 15 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2571 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 Perkins, 5 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: Langston, Stillwater, Cushing.

How big was it?

This earthquake released about 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 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 5.0 on 2016-11-07 — about 150,000 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 35.9750, -97.0853. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Payne County, OK 15 km (9 mi) NE earthquakes near Payne County
Logan County, OK 34 km (21 mi) WSW earthquakes near Logan County
Lincoln County, OK 35 km (22 mi) SSE earthquakes near Lincoln County
Noble County, OK 48 km (30 mi) NNW earthquakes near Noble County
Pawnee County, OK 51 km (32 mi) NE earthquakes near Pawnee County
Oklahoma County, OK 55 km (34 mi) SSW earthquakes near Oklahoma County

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

Aftershocks so far

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

  1. 1.5 5 km N of Stroud, Oklahoma
  2. 1.7 5 km N of Stroud, Oklahoma
  3. 2.1 3 km W of Lucien, Oklahoma
  4. 1.6 5 km N of Stroud, Oklahoma
  5. 1.7 7 km S of Cedar Valley, Oklahoma
  6. 2.1 7 km S of Cedar Valley, Oklahoma
  7. 2.4 2 km WNW of Cushing, Oklahoma
  8. 1.5 10 km NE of Kendrick, Oklahoma
  9. 1.6 9 km WSW of Shamrock, Oklahoma
  10. 1.8 6 km WSW of Yale, Oklahoma
  11. 1.5 5 km N of Stroud, Oklahoma
  12. 2.1 9 km WSW of Meridian, Oklahoma
  13. 1.6 6 km WSW of Perry, Oklahoma
  14. 1.7 9 km WSW of Meridian, Oklahoma
  15. 3.6 5 km N of Stroud, 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.