QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

2 km ENE of Douglas, Oklahoma

· 7.3 km deep · released about 9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garfield County 18 kmNoble County 39 kmLogan County 43 kmKingfisher County 44 kmGrant County 59 kmPayne County 63 kmKay County 75 kmAlfalfa County 80 kmMajor County 81 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 1.6 (ml)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
Garfield County, 18 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2505 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 9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 9 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 36.2693, -97.6418. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garfield County, OK 18 km (11 mi) SE of here earthquakes near Garfield County
Noble County, OK 39 km (24 mi) WSW of here earthquakes near Noble County
Logan County, OK 43 km (27 mi) NNW of here earthquakes near Logan County
Kingfisher County, OK 44 km (27 mi) NE of here earthquakes near Kingfisher County
Grant County, OK 59 km (37 mi) SSE of here earthquakes near Grant County
Payne County, OK 63 km (39 mi) WNW of here earthquakes near Payne County

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

Aftershocks so far

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

  1. 1.9 6 km N of Ames, Oklahoma
  2. 1.9 3 km SE of Meno, Oklahoma
  3. 3.0 3 km SE of Meno, Oklahoma
  4. 2.9 3 km SE of Meno, Oklahoma
  5. 1.6 4 km SE of Meno, Oklahoma
  6. 1.5 Oklahoma
  7. 1.9 5 km NNE of Ames, Oklahoma
  8. 2.9 5 km N of Ames, Oklahoma
  9. 2.2 5 km N of Ames, Oklahoma
  10. 1.9 1 km NW of Fairmont, Oklahoma
  11. 1.5 1 km NNE of Guthrie, Oklahoma
  12. 1.7 4 km W of Lucien, Oklahoma
  13. 2.0 5 km WNW of Lucien, Oklahoma
  14. 2.4 3 km NNW of Covington, Oklahoma
  15. 1.9 5 km N of Ames, 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 4.6 on 2018-04-09 — it released about 27,000 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.