QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

6 km NW of Renfrow, Oklahoma

· 6.7 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 20 kmSumner County 36 kmHarper County 40 kmKay County 54 kmAlfalfa County 60 kmGarfield County 65 kmKingman County 76 kmNoble County 77 kmSedgwick 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 2.6 (ml)
Depth
6.7 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Grant County, 20 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1512 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 36.9625, -97.7166. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, OK 20 km (13 mi) NNE of here earthquakes near Grant County
Sumner County, KS 36 km (23 mi) SSW of here earthquakes near Sumner County
Harper County, KS 40 km (25 mi) SE of here earthquakes near Harper County
Kay County, OK 54 km (33 mi) WNW of here earthquakes near Kay County
Alfalfa County, OK 60 km (37 mi) ENE of here earthquakes near Alfalfa County
Garfield County, OK 65 km (41 mi) N of here earthquakes near Garfield County

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

Aftershocks so far

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

  1. 2.6 4 km SSE of Manchester, Oklahoma
  2. 1.9 2 km ESE of Mayfield, Kansas
  3. 2.6 2 km SW of Braman, Oklahoma
  4. 1.9 6 km NE of Renfrow, Oklahoma
  5. 2.9 8 km W of Deer Creek, Oklahoma
  6. 1.7 6 km NNE of Bluff City, Kansas
  7. 2.5 6 km ENE of Jefferson, Oklahoma
  8. 2.4 4 km E of Freeport, Kansas
  9. 2.3 3 km E of Freeport, Kansas
  10. 2.0 2 km S of Caldwell, Kansas
  11. 1.8 5 km E of Caldwell, Kansas
  12. 2.6 8 km W of Deer Creek, Oklahoma
  13. 2.2 4 km E of Freeport, Kansas
  14. 1.8 Kansas
  15. 2.1 3 km E of Freeport, Kansas

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 4.3 on 2017-09-08 — it released about 350 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.