QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

8 km ESE of Amber, Oklahoma

· 7.3 km deep · released about 5.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grady County 16 kmMcClain County 34 kmCleveland County 43 kmCanadian County 48 kmCaddo County 53 kmOklahoma County 58 kmGarvin County 65 kmStephens County 74 kmPottawatomie County 76 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 1.5 (ml)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
Grady County, 16 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1698 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 5.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.6 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 35.1413, -97.7938. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grady County, OK 16 km (10 mi) NNE of here earthquakes near Grady County
McClain County, OK 34 km (21 mi) WNW of here earthquakes near McClain County
Cleveland County, OK 43 km (27 mi) W of here earthquakes near Cleveland County
Canadian County, OK 48 km (30 mi) SSE of here earthquakes near Canadian County
Caddo County, OK 53 km (33 mi) E of here earthquakes near Caddo County
Oklahoma County, OK 58 km (36 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

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

  1. 1.7 6 km NNE of Newcastle, Oklahoma
  2. 1.6 5 km SW of Bridge Creek, Oklahoma
  3. 1.6 5 km WSW of Bridge Creek, Oklahoma
  4. 1.6 5 km WSW of Bridge Creek, Oklahoma
  5. 1.6 7 km SSW of Bridge Creek, Oklahoma
  6. 1.6 12 km SSW of Bradley, Oklahoma
  7. 1.8 10 km NNW of Alex, Oklahoma
  8. 1.6 10 km ESE of Chickasha, Oklahoma
  9. 1.6 10 km NE of Ninnekah, Oklahoma
  10. 2.0 9 km ESE of Chickasha, Oklahoma
  11. 1.7 4 km WNW of Blanchard, Oklahoma
  12. 1.7 5 km NW of Blanchard, Oklahoma
  13. 2.9 11 km ESE of Chickasha, Oklahoma
  14. 1.7 11 km ESE of Chickasha, Oklahoma
  15. 1.6 9 km SE of Chickasha, 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.