QuakeIndex

Earthquake · reviewed by a seismologist

M 3.4mb_lg

Earthquake near Stillwater, OK

No earthquake was likely felt in Stillwater in the 24 hours to 8:40 am CST (14:40 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 3.4 earthquake was recorded 39 km (24 mi) east-northeast of Stillwater, OK, at 9:51 pm CDT on 7 July 2017 (02:51 UTC), 7.3 km deep. 11 people have reported feeling it to USGS.

USGS: 6 km N of Maramec, Oklahoma

39 km (24 mi) ENE of Stillwater, OK · 119 km (74 mi) NE of Oklahoma City, OK

9:51 pm CDT, Jul 7, 2017 · · 7.3 km deep · released about 1.9 tons of TNT

Every earthquake near Stillwater Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pawnee County 2 kmPayne County 35 kmOsage County 44 kmNoble County 50 kmCreek County 52 kmLincoln County 69 kmKay County 70 kmTulsa County 70 kmLogan County 81 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
9:51 pm CDT on 7 July 2017 ()
Where
39 km (24 mi) east-northeast of Stillwater, OK · earthquakes near Stillwater
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 3.4 (mb_lg)
Depth
7.3 km below the surface
Felt
11 reports · strongest reported intensity IV
Nearest
Pawnee County, 2 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3327 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 271 km (168 mi) from the epicentre. In Stillwater, 39 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: Pawnee 11 km, intensity IV · Yale 21 km, intensity III · Cushing 36 km, intensity III · Stillwater 39 km, intensity III · Perkins 48 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1.9 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 89,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 2,800× the energy of this one
  4. This earthquake M 3.4 about 1.9 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 4× more

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 4,000 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 36.3009, -96.6908. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pawnee County, OK 2 km (1 mi) NNW earthquakes near Pawnee County
Payne County, OK 35 km (22 mi) SW earthquakes near Payne County
Osage County, OK 44 km (27 mi) NE earthquakes near Osage County
Noble County, OK 50 km (31 mi) W earthquakes near Noble County
Creek County, OK 52 km (32 mi) SSE earthquakes near Creek County
Lincoln County, OK 69 km (43 mi) SSW earthquakes near Lincoln County

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

Aftershocks so far

55 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. 2.5 13 km WSW of Ralston, Oklahoma
  4. 2.6 10 km WSW of Shamrock, Oklahoma
  5. 2.6 7 km W of Shamrock, Oklahoma
  6. 2.9 10 km WSW of Shamrock, Oklahoma
  7. 3.0 3 km WNW of Cushing, Oklahoma
  8. 2.5 11 km WSW of Shamrock, Oklahoma
  9. 3.8 10 km SSE of Red Rock, Oklahoma
  10. 2.7 10 km WSW of Shamrock, Oklahoma
  11. 3.3 2 km WNW of Cushing, Oklahoma
  12. 3.8 10 km WSW of Shamrock, Oklahoma
  13. 2.4 3 km WNW of Cushing, Oklahoma
  14. 2.5 2 km WNW of Cushing, Oklahoma
  15. 3.3 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.