QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6mb_lg

5 km NNE of Lamont, Oklahoma

· 4.8 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 24 kmKay County 35 kmGarfield County 46 kmNoble County 47 kmSumner County 55 kmHarper County 69 kmAlfalfa County 71 kmCowley County 82 kmPawnee County 88 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
4.8 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Grant County, 24 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1517 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 36.7394, -97.5290. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, OK 24 km (15 mi) ESE of here earthquakes near Grant County
Kay County, OK 35 km (22 mi) WSW of here earthquakes near Kay County
Garfield County, OK 46 km (29 mi) NNE of here earthquakes near Garfield County
Noble County, OK 47 km (29 mi) NNW of here earthquakes near Noble County
Sumner County, KS 55 km (34 mi) S of here earthquakes near Sumner County
Harper County, KS 69 km (43 mi) SE of here earthquakes near Harper County

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

Aftershocks so far

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

  1. 3.4 7 km SSE of Pond Creek, Oklahoma
  2. 3.4 2 km NW of Fairmont, Oklahoma
  3. 1.7 11 km WNW of Caldwell, Kansas
  4. 3.0 8 km SW of Hunter, Oklahoma
  5. 1.6 9 km ENE of Bluff City, Kansas
  6. 1.7 5 km ESE of Caldwell, Kansas
  7. 2.9 5 km E of Pond Creek, Oklahoma
  8. 2.9 7 km SSE of Pond Creek, Oklahoma
  9. 1.6 10 km ESE of Bluff City, Kansas
  10. 1.7 4 km SW of Bluff City, Kansas
  11. 2.5 3 km N of Nash, Oklahoma
  12. 3.0 5 km E of Pond Creek, Oklahoma
  13. 2.6 5 km E of Pond Creek, Oklahoma
  14. 1.7 3 km E of Bluff City, Kansas
  15. 2.5 7 km E 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.