QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

12 km NW of Watonga, Oklahoma

· 6.8 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Blaine County 8 kmMajor County 42 kmDewey County 47 kmKingfisher County 50 kmCuster County 56 kmCanadian County 63 kmGarfield County 80 kmWashita County 85 kmCaddo 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
Magnitude
M 1.7 (ml)
Depth
6.8 km below the surface
Felt
no reports yet
Nearest
Blaine County, 8 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1930 days ago

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

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 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× 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.

Where

Epicentre 35.9347, -98.4920. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Blaine County, OK 8 km (5 mi) NW of here earthquakes near Blaine County
Major County, OK 42 km (26 mi) S of here earthquakes near Major County
Dewey County, OK 47 km (29 mi) E of here earthquakes near Dewey County
Kingfisher County, OK 50 km (31 mi) W of here earthquakes near Kingfisher County
Custer County, OK 56 km (35 mi) NE of here earthquakes near Custer County
Canadian County, OK 63 km (39 mi) NW of here earthquakes near Canadian County

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

Aftershocks so far

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

  1. 2.2 12 km WSW of Okeene, Oklahoma
  2. 2.1 4 km E of Isabella, Oklahoma
  3. 1.7 2 km WNW of Loyal, Oklahoma
  4. 1.9 5 km NW of Ames, Oklahoma
  5. 1.8 10 km W of Fairview, Oklahoma
  6. 1.8 14 km W of Kingfisher, Oklahoma
  7. 1.8 13 km S of Loyal, Oklahoma
  8. 1.7 14 km WSW of Kingfisher, Oklahoma
  9. 1.9 14 km W of Kingfisher, Oklahoma
  10. 1.9 10 km E of Chester, Oklahoma
  11. 2.6 14 km WSW of Kingfisher, Oklahoma
  12. 1.7 10 km ESE of Chester, Oklahoma
  13. 1.6 1 km W of Loyal, Oklahoma
  14. 1.9 9 km WSW of Isabella, Oklahoma
  15. 2.1 8 km S of Fairview, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.1 on 2016-01-18 — it released about 4,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.