QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

6 km S of Amber, Oklahoma

· 5.0 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grady County 9 kmMcClain County 41 kmCaddo County 46 kmCanadian County 49 kmCleveland County 52 kmOklahoma County 66 kmGarvin County 68 kmStephens County 69 kmComanche County 73 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 2.1 (ml)
Depth
5.0 km below the surface
Felt
3 reports · strongest reported intensity II
Nearest
Grady County, 9 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2706 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 35.1057, -97.8863. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grady County, OK 9 km (6 mi) N of here earthquakes near Grady County
McClain County, OK 41 km (25 mi) WNW of here earthquakes near McClain County
Caddo County, OK 46 km (28 mi) E of here earthquakes near Caddo County
Canadian County, OK 49 km (31 mi) S of here earthquakes near Canadian County
Cleveland County, OK 52 km (33 mi) WSW of here earthquakes near Cleveland County
Oklahoma County, OK 66 km (41 mi) SW of here earthquakes near Oklahoma County

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

Aftershocks so far

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

  1. 2.2 Oklahoma
  2. 2.2 6 km W of Wayne, Oklahoma
  3. 2.3 6 km W of Wayne, Oklahoma
  4. 1.6 2 km S of Blanchard, Oklahoma
  5. 1.7 10 km W of Dibble, Oklahoma
  6. 2.5 2 km WNW of Bridge Creek, Oklahoma
  7. 2.2 6 km W of Bridge Creek, Oklahoma
  8. 2.1 1 km NW of Bridge Creek, Oklahoma
  9. 2.6 2 km WSW of Bridge Creek, Oklahoma
  10. 2.5 2 km NW of Bridge Creek, Oklahoma
  11. 2.0 1 km WNW of Bridge Creek, Oklahoma
  12. 1.6 1 km NW of Bridge Creek, Oklahoma
  13. 2.1 2 km WNW of Bridge Creek, Oklahoma
  14. 1.8 1 km WNW of Bridge Creek, Oklahoma
  15. 2.0 1 km W of Bridge Creek, 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.