QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Woodward, OK

No earthquake was likely felt in Woodward in the 24 hours to 5:46 pm CST (23:46 UTC). The last one was M 3.4, 152 km (94 mi) SE, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Woodward

This page: a magnitude 1.8 earthquake was recorded 35 km (22 mi) northeast of Woodward, OK, at 6:54 pm CDT on 16 March 2026 (23:54 UTC), 6.7 km deep.

USGS: 15 km S of Freedom, Oklahoma

6:54 pm CDT, Mar 16, 2026 · · 6.7 km deep · released about 14 lb of TNT

10 km30 km60 km120 km N Woods County 23 kmWoodward County 28 kmHarper County 54 kmMajor County 61 kmComanche County 63 kmAlfalfa County 69 kmDewey County 73 kmEllis County 75 kmBarber County 75 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
6:54 pm CDT on 16 March 2026 ()
Where
35 km (22 mi) northeast of Woodward, OK · earthquakes near Woodward
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
Woods County, 23 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 239 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 14 km (9 mi) from the epicentre. In Woodward, 35 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: Mooreland.

How big was it?

This earthquake released about 14 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 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 99,000 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 36.6340, -99.0905. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Woods County, OK 23 km (14 mi) ENE earthquakes near Woods County
Woodward County, OK 28 km (18 mi) SW earthquakes near Woodward County
Harper County, OK 54 km (34 mi) WNW earthquakes near Harper County
Major County, OK 61 km (38 mi) SE earthquakes near Major County
Comanche County, KS 63 km (39 mi) NNW earthquakes near Comanche County
Alfalfa County, OK 69 km (43 mi) E earthquakes near Alfalfa County

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

Aftershocks so far

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

  1. 1.1 16 km ESE of Quinlan, Oklahoma
  2. 1.1 17 km SE of Waynoka, Oklahoma
  3. 1.8 17 km SE of Waynoka, Oklahoma
  4. 0.2 17 km SSE of Waynoka, Oklahoma
  5. 1.5 14 km SSE of Waynoka, Oklahoma
  6. 1.7 15 km W of Aline, Oklahoma
  7. 2.4 15 km W of Aline, Oklahoma
  8. 1.7 14 km SSE of Freedom, Oklahoma
  9. 1.6 17 km SSE of Waynoka, Oklahoma
  10. 2.3 5 km S of Dacoma, Oklahoma
  11. 3.0 17 km SE 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.