QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

5 km SW of Byron, Oklahoma

· 5.7 km deep · released about 1,300 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Alfalfa County 15 kmHarper County 43 kmWoods County 49 kmBarber County 50 kmGrant County 50 kmMajor County 64 kmGarfield County 73 kmKingman County 78 kmSumner 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 3.1 (ml)
Depth
5.7 km below the surface
Felt
no reports yet
Nearest
Alfalfa County, 15 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3762 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 250,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,900× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.4× more

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 36.8672, -98.3410. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Alfalfa County, OK 15 km (10 mi) N of here earthquakes near Alfalfa County
Harper County, KS 43 km (27 mi) SW of here earthquakes near Harper County
Woods County, OK 49 km (30 mi) ENE of here earthquakes near Woods County
Barber County, KS 50 km (31 mi) SE of here earthquakes near Barber County
Grant County, OK 50 km (31 mi) W of here earthquakes near Grant County
Major County, OK 64 km (40 mi) NNE of here earthquakes near Major County

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

Aftershocks so far

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

  1. 2.6 4 km ENE of Avard, Oklahoma
  2. 2.8 9 km NW of Dacoma, Oklahoma
  3. 2.2 4 km NNE of Anthony, Kansas
  4. 2.6 5 km SSW of Jet, Oklahoma
  5. 1.6 1 km NNE of Manchester, Oklahoma
  6. 3.3 2 km S of Nescatunga, Oklahoma
  7. 2.0 4 km NNE of Anthony, Kansas
  8. 2.9 6 km NW of Jet, Oklahoma
  9. 2.8 5 km W of Medford, Oklahoma
  10. 2.5 9 km SSE of Wakita, Oklahoma
  11. 1.9 5 km SSW of Bluff City, Kansas
  12. 2.1 11 km W of Aline, Oklahoma
  13. 2.5 5 km ENE of Lambert, Oklahoma
  14. 1.9 8 km SSE of Anthony, Kansas
  15. 3.0 7 km W of Wakita, 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

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