QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

4 km NNE of Cherokee, Oklahoma

· 3.6 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Alfalfa County 7 kmGrant County 48 kmWoods County 48 kmHarper County 50 kmMajor County 56 kmBarber County 58 kmGarfield County 66 kmKingman County 87 kmSumner County 89 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 (ml)
Depth
3.6 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Alfalfa County, 7 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1511 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 people have 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 36.7890, -98.3287. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Alfalfa County, OK 7 km (4 mi) N of here earthquakes near Alfalfa County
Grant County, OK 48 km (30 mi) W of here earthquakes near Grant County
Woods County, OK 48 km (30 mi) E of here earthquakes near Woods County
Harper County, KS 50 km (31 mi) SSW of here earthquakes near Harper County
Major County, OK 56 km (35 mi) NNE of here earthquakes near Major County
Barber County, KS 58 km (36 mi) SSE of here earthquakes near Barber County

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

Aftershocks so far

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

  1. 2.0 4 km SW of Bluff City, Kansas
  2. 1.5 4 km SW of Bluff City, Kansas
  3. 1.8 5 km SSE of Anthony, Kansas
  4. 2.8 4 km NE of Cherokee, Oklahoma
  5. 2.8 3 km SE of Meno, Oklahoma
  6. 1.9 4 km WSW of Bluff City, Kansas
  7. 2.5 13 km WSW of Carmen, Oklahoma
  8. 2.8 1 km NNW of Lambert, Oklahoma
  9. 2.8 2 km NNW of Lambert, Oklahoma
  10. 2.5 1 km SW of Cherokee, Oklahoma
  11. 2.3 7 km E of Nescatunga, Oklahoma
  12. 2.4 6 km NNE of Wakita, Oklahoma
  13. 2.5 16 km SE of Waynoka, Oklahoma
  14. 3.0 8 km SE of Byron, Oklahoma
  15. 3.8 3 km WNW of Byron, 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 5.1 on 2016-02-13 — it released about 5,600 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.