QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6mb_lg

Earthquake near Stroud, OK

No earthquake was likely felt in Stroud in the 24 hours to 2:18 pm CST (20:18 UTC). The last one was M 3.4, 126 km (78 mi) W, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Stroud

This page: a magnitude 2.6 earthquake was recorded 5 km (3 mi) north of Stroud, OK, at 9:57 am CDT on 27 June 2017 (14:57 UTC), 3.3 km deep. 3 people have reported feeling it to USGS.

USGS: 4 km N of Stroud, Oklahoma

86 km (53 mi) ENE of Oklahoma City, OK · 54 km (33 mi) SE of Stillwater, OK

9:57 am CDT, Jun 27, 2017 · · 3.3 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Lincoln County 23 kmCreek County 27 kmPayne County 43 kmOkfuskee County 47 kmPawnee County 58 kmOkmulgee County 64 kmPottawatomie County 70 kmSeminole County 71 kmLogan County 73 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
9:57 am CDT on 27 June 2017 ()
Where
5 km (3 mi) north of Stroud, OK · earthquakes near Stroud
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.6 (mb_lg)
Depth
3.3 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Lincoln County, 23 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3333 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 51 km (32 mi) from the epicentre. In Stroud, 5 km away, the estimate is intensity III (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: Stroud 5 km, intensity III · Chandler 23 km, intensity III · Cushing 24 km, intensity II · Prague 34 km, intensity II · Yale 36 km, intensity II · Perkins 40 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 4,000 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 · 31 km SSW 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 35.7928, -96.6503. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lincoln County, OK 23 km (14 mi) WSW earthquakes near Lincoln County
Creek County, OK 27 km (17 mi) ENE earthquakes near Creek County
Payne County, OK 43 km (27 mi) NW earthquakes near Payne County
Okfuskee County, OK 47 km (29 mi) SE earthquakes near Okfuskee County
Pawnee County, OK 58 km (36 mi) N earthquakes near Pawnee County
Okmulgee County, OK 64 km (40 mi) ESE earthquakes near Okmulgee 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 10 km NNE of Kendrick, Oklahoma
  2. 2.5 3 km WNW of Cushing, Oklahoma
  3. 2.6 10 km WSW of Shamrock, Oklahoma
  4. 2.6 7 km W of Shamrock, Oklahoma
  5. 2.9 10 km WSW of Shamrock, Oklahoma
  6. 3.0 3 km WNW of Cushing, Oklahoma
  7. 2.5 9 km SW of Shamrock, Oklahoma
  8. 2.5 11 km WSW of Shamrock, Oklahoma
  9. 2.7 10 km WSW of Shamrock, Oklahoma
  10. 3.0 Oklahoma
  11. 3.3 2 km WNW of Cushing, Oklahoma
  12. 2.5 3 km ESE of Carney, Oklahoma
  13. 3.5 3 km SE of Carney, Oklahoma
  14. 3.8 10 km WSW of Shamrock, Oklahoma
  15. 2.4 3 km WNW of Cushing, 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.