QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

Earthquake near Stillwater, OK

No earthquake was likely felt in Stillwater in the 24 hours to 4:34 am CST (10:34 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 2.2 earthquake was recorded 20 km (13 mi) north-northeast of Stillwater, OK, at 3:57 am CDT on 2 October 2019 (08:57 UTC), 4.9 km deep. 1 person has reported feeling it to USGS.

USGS: 3 km ESE of Morrison, Oklahoma

19 km (12 mi) NNE of Stillwater, OK · 103 km (64 mi) NNE of Oklahoma City, OK

3:57 am CDT, Oct 2, 2019 · · 4.9 km deep · released about 52 lb of TNT

10 km30 km60 km120 km N Payne County 23 kmPawnee County 25 kmNoble County 26 kmLogan County 60 kmKay County 61 kmOsage County 63 kmLincoln County 65 kmCreek County 68 kmGarfield County 74 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
3:57 am CDT on 2 October 2019 ()
Where
20 km (13 mi) north-northeast of Stillwater, OK · earthquakes near Stillwater
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.2 (ml)
Depth
4.9 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Payne County, 23 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2597 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 31 km (19 mi) from the epicentre. In Stillwater, 20 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.

Likely felt in: Pawnee 16 km, intensity II · Stillwater 20 km, intensity II · Perry 28 km, intensity II · Yale 31 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 52 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 290,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 52 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 5.8 on 2016-09-03 — about 290,000 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 36.2832, -96.9705. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Payne County, OK 23 km (14 mi) S earthquakes near Payne County
Pawnee County, OK 25 km (15 mi) E earthquakes near Pawnee County
Noble County, OK 26 km (16 mi) WNW earthquakes near Noble County
Logan County, OK 60 km (37 mi) SW earthquakes near Logan County
Kay County, OK 61 km (38 mi) NNW earthquakes near Kay County
Osage County, OK 63 km (39 mi) NE earthquakes near Osage County

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

Aftershocks so far

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

  1. 1.8 3 km WNW of Cushing, Oklahoma
  2. 2.7 2 km WNW of Cushing, Oklahoma
  3. 1.8 3 km WNW of Cushing, Oklahoma
  4. 2.3 9 km SSE of Billings, Oklahoma
  5. 1.6 12 km NW of Pawnee, Oklahoma
  6. 1.8 9 km E of Marland, Oklahoma
  7. 2.3 4 km W of Lucien, Oklahoma
  8. 2.1 3 km W of Lucien, Oklahoma
  9. 1.6 4 km W of Lucien, Oklahoma
  10. 2.4 4 km W of Lucien, Oklahoma
  11. 1.6 Oklahoma
  12. 2.4 2 km WNW of Cushing, Oklahoma
  13. 1.8 6 km WSW of Yale, Oklahoma
  14. 1.9 15 km NW of Pawnee, Oklahoma
  15. 1.7 6 km WNW of Lucien, 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.