QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

10 km ESE of Bluff City, Kansas

· 3.4 km deep · released about 7.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 26 kmHarper County 31 kmSumner County 34 kmAlfalfa County 59 kmKay County 61 kmKingman County 67 kmGarfield County 72 kmSedgwick County 78 kmBarber County 83 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
3.4 km below the surface
Felt
no reports yet
Nearest
Grant County, 26 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3570 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 7.8 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 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 37.0258, -97.7770. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, OK 26 km (16 mi) N of here earthquakes near Grant County
Harper County, KS 31 km (20 mi) SE of here earthquakes near Harper County
Sumner County, KS 34 km (21 mi) SW of here earthquakes near Sumner County
Alfalfa County, OK 59 km (36 mi) NE of here earthquakes near Alfalfa County
Kay County, OK 61 km (38 mi) WNW of here earthquakes near Kay County
Kingman County, KS 67 km (42 mi) SSE of here earthquakes near Kingman County

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

Aftershocks so far

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

  1. 3.0 8 km SE of Byron, Oklahoma
  2. 2.1 4 km NNE of Freeport, Kansas
  3. 1.9 8 km SSE of Anthony, Kansas
  4. 1.5 Kansas
  5. 1.6 2 km WSW of Bluff City, Kansas
  6. 2.5 6 km NNE of Medford, Oklahoma
  7. 1.8 8 km NNE of Mayfield, Kansas
  8. 2.7 8 km WNW of Medford, Oklahoma
  9. 3.0 6 km SE of Nescatunga, Oklahoma
  10. 1.9 9 km NE of Mayfield, Kansas
  11. 2.7 Oklahoma
  12. 2.3 8 km NNE of Mayfield, Kansas
  13. 2.9 4 km SSE of Braman, Oklahoma
  14. 1.6 Kansas
  15. 2.6 12 km N of Nescatunga, 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.