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 3:44 pm CST (21:44 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 32 km (20 mi) east-northeast of Stillwater, OK, at 1:47 pm CDT on 17 July 2016 (18:47 UTC), 5.4 km deep.

USGS: 6 km WNW of Maramec, Oklahoma

32 km (20 mi) ENE of Stillwater, OK · 111 km (69 mi) NE of Oklahoma City, OK

1:47 pm CDT, Jul 17, 2016 · · 5.4 km deep · released about 340 lb of TNT

10 km30 km60 km120 km N Pawnee County 8 kmPayne County 28 kmNoble County 46 kmCreek County 51 kmOsage County 51 kmLincoln County 62 kmKay County 72 kmLogan County 73 kmTulsa 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
1:47 pm CDT on 17 July 2016 ()
Where
32 km (20 mi) east-northeast of Stillwater, OK · earthquakes near Stillwater
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.7 (ml)
Depth
5.4 km below the surface
Felt
no reports yet
Nearest
Pawnee County, 8 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3708 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, 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.

Likely felt in: Pawnee 11 km, intensity III · Yale 16 km, intensity III · Cushing 30 km, intensity II · Stillwater 32 km, intensity II · Perkins 40 km, intensity II · Perry 48 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 36.2536, -96.7491. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pawnee County, OK 8 km (5 mi) NE earthquakes near Pawnee County
Payne County, OK 28 km (17 mi) SW earthquakes near Payne County
Noble County, OK 46 km (29 mi) WNW earthquakes near Noble County
Creek County, OK 51 km (32 mi) SE earthquakes near Creek County
Osage County, OK 51 km (32 mi) NE earthquakes near Osage County
Lincoln County, OK 62 km (39 mi) S earthquakes near Lincoln County

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

Aftershocks so far

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

  1. 2.7 15 km NW of Pawnee, Oklahoma
  2. 2.5 8 km NNW of Pawnee, Oklahoma
  3. 2.1 9 km NNW of Pawnee, Oklahoma
  4. 2.6 14 km NNW of Pawnee, Oklahoma
  5. 1.7 5 km N of Glencoe, Oklahoma
  6. 2.1 14 km NNW of Pawnee, Oklahoma
  7. 1.9 14 km NNW of Pawnee, Oklahoma
  8. 1.8 12 km NW of Pawnee, Oklahoma
  9. 2.9 15 km NW of Pawnee, Oklahoma
  10. 1.7 5 km N of Glencoe, Oklahoma
  11. 3.4 11 km NW of Pawnee, Oklahoma
  12. 2.9 9 km NNW of Pawnee, Oklahoma
  13. 2.1 Oklahoma
  14. 2.6 9 km NNW of Pawnee, Oklahoma
  15. 3.3 9 km NNW of Pawnee, 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.