QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Oklahoma

Yes. A magnitude 2.0 earthquake was recorded in Oklahoma, 34 km (21 mi) NNE of Stillwater, OK, at 6:53 am CDT on 11 September 2016 (11:53 UTC), 4.3 km deep. 1 person has reported feeling it to USGS.

34 km (21 mi) NNE of Stillwater, OK · 118 km (73 mi) NNE of Oklahoma City, OK

· 4.3 km deep · released about 30 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pawnee County 23 kmNoble County 29 kmPayne County 37 kmKay County 49 kmOsage County 52 kmLogan County 73 kmCreek County 74 kmGarfield County 78 kmLincoln County 79 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
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.0 (ml)
Depth
4.3 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Pawnee County, 23 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3627 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 24 km (15 mi) from the epicentre. 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 13 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 350,000× the energy of this one
  3. Around the size people start to feel M 3.0 32× the energy of this one
  4. This earthquake M 2.0 about 30 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 500,000 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 36.4098, -96.9189. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pawnee County, OK 23 km (14 mi) ESE earthquakes near Pawnee County
Noble County, OK 29 km (18 mi) W earthquakes near Noble County
Payne County, OK 37 km (23 mi) S earthquakes near Payne County
Kay County, OK 49 km (31 mi) NNW earthquakes near Kay County
Osage County, OK 52 km (32 mi) ENE earthquakes near Osage County
Logan County, OK 73 km (45 mi) SW earthquakes near Logan County

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

Aftershocks so far

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

  1. 2.0 13 km NW of Pawnee, Oklahoma
  2. 2.3 14 km NW of Pawnee, Oklahoma
  3. 2.7 4 km ENE of Morrison, Oklahoma
  4. 1.6 13 km NW of Pawnee, Oklahoma
  5. 2.5 13 km NW of Pawnee, Oklahoma
  6. 2.6 14 km NW of Pawnee, Oklahoma
  7. 2.1 14 km NNE of Morrison, Oklahoma
  8. 2.8 14 km NW of Pawnee, Oklahoma
  9. 2.5 13 km NW of Pawnee, Oklahoma
  10. 1.7 13 km NW of Pawnee, Oklahoma
  11. 2.3 Oklahoma
  12. 2.7 5 km N of Pawnee, Oklahoma
  13. 1.6 5 km N of Pawnee, Oklahoma
  14. 1.7 9 km NNW of Pawnee, Oklahoma
  15. 2.4 7 km SW of Glencoe, 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.