QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Woodward, OK

No earthquake was likely felt in Woodward in the 24 hours to 10:10 am CST (16:10 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 1.7 earthquake was recorded 43 km (27 mi) south of Woodward, OK, at 8:07 pm CDT on 7 May 2020 (01:07 UTC), 5.0 km deep.

USGS: 4 km NNW of Camargo, Oklahoma

8:07 pm CDT, May 7, 2020 · · 5.0 km deep · released about 11 lb of TNT

10 km30 km60 km120 km N Dewey County 28 kmWoodward County 42 kmEllis County 44 kmCuster County 53 kmRoger Mills County 54 kmMajor County 75 kmBlaine County 82 kmWoods County 85 kmHarper County 89 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
8:07 pm CDT on 7 May 2020 ()
Where
43 km (27 mi) south of Woodward, OK · earthquakes near Woodward
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 1.7 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Dewey County, 28 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2375 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 12 km (7 mi) from the epicentre. In Woodward, 43 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 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 930,000× the energy of this one
  3. Around the size people start to feel M 3.0 83× the energy of this one
  4. This earthquake M 1.7 about 11 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 36.0517, -99.3118. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Dewey County, OK 28 km (17 mi) ESE earthquakes near Dewey County
Woodward County, OK 42 km (26 mi) N earthquakes near Woodward County
Ellis County, OK 44 km (27 mi) WNW earthquakes near Ellis County
Custer County, OK 53 km (33 mi) SSE earthquakes near Custer County
Roger Mills County, OK 54 km (34 mi) SW earthquakes near Roger Mills County
Major County, OK 75 km (47 mi) ENE earthquakes near Major County

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

Aftershocks so far

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

  1. 2.1 10 km ESE of Chester, Oklahoma
  2. 1.5 15 km W of Canton, Oklahoma
  3. 1.5 10 km ESE of Chester, Oklahoma
  4. 2.3 6 km W of Mutual, Oklahoma
  5. 1.5 6 km ESE of Mooreland, Oklahoma
  6. 1.8 7 km S of Putnam, Oklahoma
  7. 2.1 6 km NNW of Woodward, Oklahoma
  8. 2.4 4 km W of Seiling, Oklahoma
  9. 1.5 6 km E of Mooreland, Oklahoma
  10. 2.3 8.8 km SE of Chester, OK
  11. 1.6 10 km ESE of Chester, Oklahoma
  12. 1.6 2 km NNW of Chester, Oklahoma
  13. 2.0 6 km SW of Mooreland, Oklahoma
  14. 1.9 9 km N of Chester, Oklahoma
  15. 1.6 5 km SE of Mooreland, 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.