QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Fairview, OK

No earthquake was likely felt in Fairview in the 24 hours to 10:44 pm CST (04:44 UTC). The last one was M 3.4, 83 km (52 mi) SSE, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Fairview

This page: a magnitude 1.8 earthquake was recorded 12 km (7 mi) north-northwest of Fairview, OK, at 12:00 am CDT on 27 October 2021 (05:00 UTC), 17 km deep.

USGS: 10 km WSW of Cleo Springs, Oklahoma

12:00 am CDT, Oct 27, 2021 · · 17 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Major County 6 kmAlfalfa County 45 kmWoods County 49 kmBlaine County 55 kmDewey County 60 kmWoodward County 66 kmGarfield County 68 kmKingfisher County 72 kmGrant County 82 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
12:00 am CDT on 27 October 2021 ()
Where
12 km (7 mi) north-northwest of Fairview, OK · earthquakes near Fairview
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.8 (ml)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Major County, 6 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1842 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Fairview, 12 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.

How big was it?

This earthquake released about 15 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 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 5.1 on 2016-02-13 — about 89,000 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 36.3640, -98.5440. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Major County, OK 6 km (4 mi) S earthquakes near Major County
Alfalfa County, OK 45 km (28 mi) NNE earthquakes near Alfalfa County
Woods County, OK 49 km (31 mi) NW earthquakes near Woods County
Blaine County, OK 55 km (34 mi) S earthquakes near Blaine County
Dewey County, OK 60 km (37 mi) SW earthquakes near Dewey County
Woodward County, OK 66 km (41 mi) W earthquakes near Woodward County

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

Aftershocks so far

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

  1. 2.2 10 km WNW of Okeene, Oklahoma
  2. 2.1 10 km WNW of Okeene, Oklahoma
  3. 1.9 10 km E of Longdale, Oklahoma
  4. 2.3 10 km WNW of Okeene, Oklahoma
  5. 1.7 9 km S of Fairview, Oklahoma
  6. 1.7 8 km SSE of Fairview, Oklahoma
  7. 1.8 9 km WSW of Waynoka, Oklahoma
  8. 2.2 16 km SSE of Waynoka, Oklahoma
  9. 1.8 17 km SE of Waynoka, Oklahoma
  10. 2.0 8 km W of Drummond, Oklahoma
  11. 1.5 4 km SSW of Goltry, Oklahoma
  12. 2.2 12 km WSW of Okeene, Oklahoma
  13. 2.1 4 km E of Isabella, Oklahoma
  14. 1.8 7 km W of Jet, Oklahoma
  15. 1.5 16 km SSE of Waynoka, 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.