QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6mb_lg

10 km SSE of Sun City, Kansas

· 5.0 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Barber County 18 kmComanche County 36 kmPratt County 41 kmKiowa County 47 kmWoods County 63 kmKingman County 70 kmHarper County 72 kmEdwards County 76 kmAlfalfa County 79 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 2.6 (mb_lg)
Depth
5.0 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Barber County, 18 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1516 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 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 37.2930, -98.8681. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Barber County, KS 18 km (11 mi) WNW of here earthquakes near Barber County
Comanche County, KS 36 km (22 mi) ENE of here earthquakes near Comanche County
Pratt County, KS 41 km (25 mi) SSW of here earthquakes near Pratt County
Kiowa County, KS 47 km (30 mi) SE of here earthquakes near Kiowa County
Woods County, OK 63 km (39 mi) N of here earthquakes near Woods County
Kingman County, KS 70 km (44 mi) WSW of here earthquakes near Kingman County

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

Aftershocks so far

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

  1. 2.1 Oklahoma
  2. 2.1 1 km ESE of Hazelton, Kansas
  3. 2.6 14 km WNW of Alva, Oklahoma
  4. 3.1 15 km WNW of Alva, Oklahoma
  5. 2.5 19 km WSW of Hardtner, Kansas
  6. 3.2 15 km WNW of Alva, Oklahoma
  7. 2.9 15 km WNW of Alva, Oklahoma
  8. 2.7 15 km WNW of Alva, Oklahoma
  9. 2.6 15 km WNW of Alva, Oklahoma
  10. 2.8 1 km ESE of Medicine Lodge, Kansas
  11. 2.8 15 km WNW of Alva, 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.