QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

1 km N of Lamont, Oklahoma

· 8.0 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 23 kmKay County 39 kmGarfield County 42 kmNoble County 46 kmSumner County 59 kmAlfalfa County 69 kmHarper County 70 kmCowley County 87 kmPayne County 87 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 2.5 (ml)
Depth
8.0 km below the surface
Felt
no reports yet
Nearest
Grant County, 23 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3533 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 36.7054, -97.5543. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, OK 23 km (14 mi) ESE of here earthquakes near Grant County
Kay County, OK 39 km (24 mi) WSW of here earthquakes near Kay County
Garfield County, OK 42 km (26 mi) NNE of here earthquakes near Garfield County
Noble County, OK 46 km (28 mi) NW of here earthquakes near Noble County
Sumner County, KS 59 km (37 mi) S of here earthquakes near Sumner County
Alfalfa County, OK 69 km (43 mi) E of here earthquakes near Alfalfa County

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

Aftershocks so far

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

  1. 1.8 4 km ESE of Caldwell, Kansas
  2. 3.3 12 km NNW of Perry, Oklahoma
  3. 2.8 7 km E of Nescatunga, Oklahoma
  4. 2.5 6 km E of Renfrow, Oklahoma
  5. 1.9 10 km NNW of Caldwell, Kansas
  6. 3.2 5 km E of Pond Creek, Oklahoma
  7. 3.2 4 km WNW of Lucien, Oklahoma
  8. 2.9 4 km WNW of Lucien, Oklahoma
  9. 1.5 9 km NNW of Caldwell, Kansas
  10. 3.0 4 km WNW of Lucien, Oklahoma
  11. 2.6 9 km E of Manchester, Oklahoma
  12. 2.4 1 km NE of Fairmont, Oklahoma
  13. 3.6 8 km WSW of Deer Creek, Oklahoma
  14. 2.6 7 km SSE of Manchester, Oklahoma
  15. 2.5 6 km WSW of Red Rock, 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 4.2 on 2016-07-17 — 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.