QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

6 km NNW of Breckinridge, Oklahoma

· 7.5 km deep · released about 950 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Garfield County 12 kmGrant County 34 kmNoble County 49 kmAlfalfa County 57 kmKingfisher County 62 kmKay County 66 kmLogan County 70 kmMajor County 72 kmHarper County 82 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 3.0 (ml)
Depth
7.5 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Garfield County, 12 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3420 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 36.4876, -97.7636. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Garfield County, OK 12 km (8 mi) N of here earthquakes near Garfield County
Grant County, OK 34 km (21 mi) S of here earthquakes near Grant County
Noble County, OK 49 km (30 mi) WNW of here earthquakes near Noble County
Alfalfa County, OK 57 km (35 mi) ESE of here earthquakes near Alfalfa County
Kingfisher County, OK 62 km (38 mi) NNE of here earthquakes near Kingfisher County
Kay County, OK 66 km (41 mi) WSW of here earthquakes near Kay County

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

Aftershocks so far

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

  1. 3.0 7 km SSE of Lucien, Oklahoma
  2. 2.8 7 km NNW of Orlando, Oklahoma
  3. 3.1 7 km NNW of Orlando, Oklahoma
  4. 3.5 7 km NNW of Orlando, Oklahoma
  5. 3.1 10 km W of Lamont, Oklahoma
  6. 3.2 10 km W of Lamont, Oklahoma
  7. 2.5 4 km WNW of Lucien, Oklahoma
  8. 3.3 5 km SSE of Helena, Oklahoma
  9. 2.5 6 km SW of Goltry, Oklahoma
  10. 2.4 2 km W of Hennessey, Oklahoma
  11. 2.8 2 km W of Hennessey, Oklahoma
  12. 2.9 4 km WNW of Ringwood, Oklahoma
  13. 2.6 9 km ESE of Wakita, Oklahoma
  14. 2.7 5 km SSE of Pond Creek, Oklahoma
  15. 2.8 0 km N of Douglas, 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 4.2 on 2016-07-17 — it released about 63 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.