QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5mb_lg

Earthquake near Watonga, OK

No earthquake was likely felt in Watonga in the 24 hours to 2:18 pm CST (20:18 UTC). The last one was M 3.4, 42 km (26 mi) SE, at 5:53 am CST on 7 November 2026, estimated intensity III (weak) in town; 23 felt reports to USGS. Every earthquake near Watonga

This page: a magnitude 2.5 earthquake was recorded 16 km (10 mi) west-southwest of Watonga, OK, at 1:48 pm CDT on 25 August 2017 (18:48 UTC), 5.0 km deep.

USGS: 15 km WSW of Watonga, Oklahoma

1:48 pm CDT, Aug 25, 2017 · · 5.0 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Blaine County 17 kmCuster County 41 kmDewey County 46 kmMajor County 59 kmCanadian County 60 kmKingfisher County 60 kmWashita County 67 kmCaddo County 70 kmWoodward County 95 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
1:48 pm CDT on 25 August 2017 ()
Where
16 km (10 mi) west-southwest of Watonga, OK · earthquakes near Watonga
Oklahoma today
every earthquake in Oklahoma in the last 24 hours
Magnitude
M 2.5 (mb_lg)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Blaine County, 17 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3277 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 46 km (29 mi) from the epicentre. In Watonga, 16 km away, the estimate is intensity III (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.

Likely felt in: Watonga 16 km, intensity III · Thomas 17 km, intensity III · Okeene 44 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 35.7820, -98.5707. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Blaine County, OK 17 km (10 mi) NE earthquakes near Blaine County
Custer County, OK 41 km (26 mi) WSW earthquakes near Custer County
Dewey County, OK 46 km (28 mi) WNW earthquakes near Dewey County
Major County, OK 59 km (37 mi) N earthquakes near Major County
Canadian County, OK 60 km (37 mi) ESE earthquakes near Canadian County
Kingfisher County, OK 60 km (37 mi) ENE earthquakes near Kingfisher County

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

Aftershocks so far

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

  1. 2.8 14 km WNW of Longdale, Oklahoma
  2. 3.1 16 km ENE of Thomas, Oklahoma
  3. 2.2 8 km ENE of Greenfield, Oklahoma
  4. 3.2 15 km WSW of Watonga, Oklahoma
  5. 2.8 4 km SSW of Thomas, Oklahoma
  6. 2.3 14 km ENE of Thomas, Oklahoma
  7. 2.9 14 km WNW of Longdale, Oklahoma
  8. 2.6 14 km WNW of Longdale, Oklahoma
  9. 2.8 13 km NW of Longdale, Oklahoma
  10. 2.6 14 km WNW of Longdale, Oklahoma
  11. 2.6 4 km NNE of Okeene, Oklahoma
  12. 2.4 7 km NW of Okeene, Oklahoma
  13. 2.4 7 km NW of Okeene, Oklahoma
  14. 3.4 7 km NW of Okeene, Oklahoma
  15. 2.7 13 km NW of Longdale, 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.