QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

Earthquake near Stillwater, OK

No earthquake was likely felt in Stillwater in the 24 hours to 3:49 pm CST (21:49 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 2.7 earthquake was recorded 28 km (17 mi) south of Stillwater, OK, at 2:28 am CDT on 13 May 2016 (07:28 UTC), 5.0 km deep.

USGS: 7 km NNW of Carney, Oklahoma

61 km (38 mi) NE of Oklahoma City, OK · 30 km (18 mi) S of Stillwater, OK

2:28 am CDT, May 13, 2016 · · 5.0 km deep · released about 340 lb of TNT

10 km30 km60 km120 km N Lincoln County 24 kmPayne County 25 kmLogan County 36 kmOklahoma County 47 kmPawnee County 59 kmNoble County 60 kmCreek County 61 kmPottawatomie County 73 kmCleveland 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
2:28 am CDT on 13 May 2016 ()
Where
28 km (17 mi) south of Stillwater, OK · earthquakes near Stillwater
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.7 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Lincoln County, 24 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3764 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 56 km (35 mi) from the epicentre. In Stillwater, 28 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: Perkins 12 km, intensity III · Langston 20 km, intensity III · Chandler 24 km, intensity III · Luther 26 km, intensity III · Stillwater 28 km, intensity II · Cushing 29 km, intensity II · Guthrie 34 km, intensity II · Stroud 38 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 4.2 on 2016-04-07 — about 180 times the energy of this one.

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

  1. 5.7 8 km NW of Prague, Oklahoma · 45 km SE 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 35.8648, -97.0505. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lincoln County, OK 24 km (15 mi) SE earthquakes near Lincoln County
Payne County, OK 25 km (15 mi) NNE earthquakes near Payne County
Logan County, OK 36 km (23 mi) W earthquakes near Logan County
Oklahoma County, OK 47 km (29 mi) SW earthquakes near Oklahoma County
Pawnee County, OK 59 km (37 mi) NNE earthquakes near Pawnee County
Noble County, OK 60 km (37 mi) NNW earthquakes near Noble 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. 2.5 5 km W of Arcadia, Oklahoma
  2. 2.4 2 km E of Choctaw, Oklahoma
  3. 3.2 4 km ENE of Edmond, Oklahoma
  4. 2.6 2 km NE of Meridian, Oklahoma
  5. 2.5 5 km ENE of Crescent, Oklahoma
  6. 3.3 1 km N of Jones, Oklahoma
  7. 2.9 4 km SW of Arcadia, Oklahoma
  8. 2.2 5 km NNW of Cushing, Oklahoma
  9. 2.5 9 km E of Mulhall, Oklahoma
  10. 2.6 5 km W of Arcadia, Oklahoma
  11. 2.4 6 km ENE of Edmond, Oklahoma
  12. 2.2 3 km W of Cushing, Oklahoma
  13. 3.3 3 km ESE of Luther, Oklahoma
  14. 2.6 2 km ENE of Luther, Oklahoma
  15. 2.7 5 km W of Arcadia, 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.