QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

3 km WNW of Deer Creek, Oklahoma

· 8.0 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 21 kmKay County 37 kmSumner County 47 kmGarfield County 53 kmNoble County 56 kmHarper County 61 kmAlfalfa County 69 kmCowley County 79 kmPawnee County 95 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 2.8 (ml)
Depth
8.0 km below the surface
Felt
no reports yet
Nearest
Grant County, 21 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3413 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 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 36.8189, -97.5544. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, OK 21 km (13 mi) E of here earthquakes near Grant County
Kay County, OK 37 km (23 mi) W of here earthquakes near Kay County
Sumner County, KS 47 km (29 mi) S of here earthquakes near Sumner County
Garfield County, OK 53 km (33 mi) NNE of here earthquakes near Garfield County
Noble County, OK 56 km (35 mi) NNW of here earthquakes near Noble County
Harper County, KS 61 km (38 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

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

  1. 1.6 5 km SSE of Freeport, Kansas
  2. 1.5 2 km NE of Caldwell, Kansas
  3. 3.1 10 km W of Lamont, Oklahoma
  4. 3.2 10 km W of Lamont, Oklahoma
  5. 2.0 7 km ESE of Mayfield, Kansas
  6. 2.0 11 km NNW of Caldwell, Kansas
  7. 1.9 11 km NNW of Caldwell, Kansas
  8. 1.8 11 km NNW of Caldwell, Kansas
  9. 1.6 12 km NNW of Caldwell, Kansas
  10. 1.6 11 km NNW of Caldwell, Kansas
  11. 2.1 11 km NNW of Caldwell, Kansas
  12. 2.7 12 km NNW of Caldwell, Kansas
  13. 1.7 9 km W of Bluff City, Kansas
  14. 2.0 9 km W of Bluff City, Kansas
  15. 2.6 9 km ESE of Wakita, 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 4.0 on 2016-11-25 — it released about 63 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.