QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Clinton, OK

No earthquake was likely felt in Clinton in the 24 hours to 3:40 am CST (09:40 UTC). The last one was M 3.4, 84 km (52 mi) E, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Clinton

This page: a magnitude 1.8 earthquake was recorded 30 km (19 mi) north of Clinton, OK, at 3:18 pm CST on 29 January 2021 (21:18 UTC), 6.7 km deep.

USGS: 7 km S of Putnam, Oklahoma

3:18 pm CST, Jan 29, 2021 · · 6.7 km deep · released about 16 lb of TNT

10 km30 km60 km120 km N Custer County 16 kmDewey County 22 kmBlaine County 51 kmWashita County 55 kmRoger Mills County 69 kmMajor County 71 kmWoodward County 76 kmEllis County 84 kmBeckham County 86 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
3:18 pm CST on 29 January 2021 ()
Where
30 km (19 mi) north of Clinton, OK · earthquakes near Clinton
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.8 (ml)
Depth
6.7 km below the surface
Felt
no reports yet
Nearest
Custer County, 16 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2110 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 16 km (10 mi) from the epicentre. In Clinton, 30 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.

Earthquakes near other towns within 30 km: Thomas.

How big was it?

This earthquake released about 16 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 5.8 970,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 680,000× the energy of this one
  3. Around the size people start to feel M 3.0 61× the energy of this one
  4. This earthquake M 1.8 about 16 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 35.7860, -98.9830. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Custer County, OK 16 km (10 mi) S earthquakes near Custer County
Dewey County, OK 22 km (13 mi) N earthquakes near Dewey County
Blaine County, OK 51 km (32 mi) ENE earthquakes near Blaine County
Washita County, OK 55 km (34 mi) S earthquakes near Washita County
Roger Mills County, OK 69 km (43 mi) W earthquakes near Roger Mills County
Major County, OK 71 km (44 mi) NE earthquakes near Major County

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

Aftershocks so far

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

  1. 1.8 6 km WNW of Thomas, Oklahoma
  2. 1.6 6 km WNW of Thomas, Oklahoma
  3. 1.7 15 km ENE of Thomas, Oklahoma
  4. 1.8 16 km ENE of Thomas, Oklahoma
  5. 1.7 16 km ENE of Thomas, Oklahoma
  6. 1.5 15 km ENE of Thomas, Oklahoma
  7. 1.9 13 km ENE of Thomas, Oklahoma
  8. 2.0 15 km WSW of Watonga, Oklahoma
  9. 1.7 15 km ENE of Thomas, Oklahoma
  10. 1.7 Oklahoma
  11. 2.2 15 km WSW of Watonga, Oklahoma
  12. 1.8 15 km ENE of Thomas, Oklahoma
  13. 1.6 15 km ENE of Thomas, Oklahoma
  14. 1.9 15 km ENE of Thomas, Oklahoma
  15. 2.1 15 km ENE of Thomas, 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.