QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Oklahoma

Yes. A magnitude 1.8 earthquake was recorded in Oklahoma, 86 km (54 mi) NE of Oklahoma City, OK, at 11:47 am CDT on 8 June 2020 (16:47 UTC), 7.0 km deep.

86 km (54 mi) NE of Oklahoma City, OK · 29 km (18 mi) ESE of Stillwater, OK

· 7.0 km deep · released about 17 lb of TNT

10 km30 km60 km120 km N Payne County 18 kmLincoln County 32 kmPawnee County 38 kmCreek County 39 kmLogan County 59 kmNoble County 59 kmOkfuskee County 72 kmOklahoma County 73 kmTulsa 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 1.8 (ml)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Payne County, 18 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2347 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 17 km (11 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: Cushing 4 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× the energy of this one
  4. This earthquake M 1.8 about 17 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 900,000 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 35.9880, -96.8065. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Payne County, OK 18 km (11 mi) NW earthquakes near Payne County
Lincoln County, OK 32 km (20 mi) SSW earthquakes near Lincoln County
Pawnee County, OK 38 km (23 mi) NNE earthquakes near Pawnee County
Creek County, OK 39 km (24 mi) ESE earthquakes near Creek County
Logan County, OK 59 km (36 mi) W earthquakes near Logan County
Noble County, OK 59 km (36 mi) NW earthquakes near Noble County

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

Aftershocks so far

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

  1. 1.8 10 km NW of Pawnee, Oklahoma
  2. 1.5 8 km N of Coyle, Oklahoma
  3. 1.9 8 km N of Coyle, Oklahoma
  4. 1.7 8 km NNW of Coyle, Oklahoma
  5. 1.9 8 km NNW of Coyle, Oklahoma
  6. 1.5 5 km N of Stroud, Oklahoma
  7. 1.9 7 km S of Perry, Oklahoma
  8. 2.2 5 km WSW of Glencoe, Oklahoma
  9. 1.6 5 km SW of Glencoe, Oklahoma
  10. 1.6 6 km ENE of Drumright, Oklahoma
  11. 2.1 5 km N of Stroud, Oklahoma
  12. 1.6 6 km NNE of Morrison, Oklahoma
  13. 1.6 8 km E of Orlando, Oklahoma
  14. 1.9 2 km WNW of Cushing, Oklahoma
  15. 1.7 2 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.