QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Stillwater, OK

No earthquake was likely felt in Stillwater in the 24 hours to 8:41 am CST (14:41 UTC). The last one was M 3.4, 105 km (65 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 Stillwater

This page: a magnitude 1.6 earthquake was recorded 32 km (20 mi) west-southwest of Stillwater, OK, at 12:30 pm CST on 5 November 2023 (18:30 UTC), 14 km deep.

USGS: 3 km SSE of Mulhall, Oklahoma

64 km (40 mi) N of Oklahoma City, OK · 31 km (19 mi) WSW of Stillwater, OK

12:30 pm CST, Nov 5, 2023 · · 14 km deep · released about 6.4 lb of TNT

10 km30 km60 km120 km N Logan County 14 kmPayne County 38 kmNoble County 41 kmKingfisher County 49 kmGarfield County 52 kmOklahoma County 54 kmLincoln County 60 kmPawnee County 70 kmCanadian 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
12:30 pm CST on 5 November 2023 ()
Where
32 km (20 mi) west-southwest of Stillwater, OK · earthquakes near Stillwater
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.6 (ml)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Logan County, 14 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1101 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 Stillwater, 32 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, Guthrie, Crescent, Perry.

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 4.6 on 2018-04-09 — about 38,000 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 36.0370, -97.3977. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Logan County, OK 14 km (9 mi) SSW earthquakes near Logan County
Payne County, OK 38 km (24 mi) E earthquakes near Payne County
Noble County, OK 41 km (26 mi) NNE earthquakes near Noble County
Kingfisher County, OK 49 km (31 mi) W earthquakes near Kingfisher County
Garfield County, OK 52 km (32 mi) NW earthquakes near Garfield County
Oklahoma County, OK 54 km (33 mi) S earthquakes near Oklahoma 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. 2.5 6 km ENE of Edmond, Oklahoma
  2. 1.5 6 km W of Arcadia, Oklahoma
  3. 1.7 5 km W of Arcadia, Oklahoma
  4. 1.9 6 km ENE of Edmond, Oklahoma
  5. 2.0 6 km ENE of Edmond, Oklahoma
  6. 1.8 6 km ENE of Edmond, Oklahoma
  7. 1.9 6 km ENE of Edmond, Oklahoma
  8. 1.7 6 km W of Arcadia, Oklahoma
  9. 1.7 4 km W of Lucien, Oklahoma
  10. 2.4 7 km W of Arcadia, Oklahoma
  11. 1.8 10 km NW of Edmond, Oklahoma
  12. 1.6 6 km ENE of Edmond, Oklahoma
  13. 2.4 12 km N of Perry, Oklahoma
  14. 1.5 6 km ENE of Edmond, Oklahoma
  15. 1.7 5 km ENE of Edmond, 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.