QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

8 km ESE of Pond Creek, Oklahoma

· 7.3 km deep · released about 1,300 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 17 kmGarfield County 31 kmNoble County 52 kmKay County 54 kmAlfalfa County 56 kmHarper County 68 kmSumner County 68 kmKingfisher County 81 kmMajor 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 3.1 (ml)
Depth
7.3 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Grant County, 17 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3590 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 250,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,900× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.4× more

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 36.6502, -97.7088. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, OK 17 km (11 mi) SSE of here earthquakes near Grant County
Garfield County, OK 31 km (19 mi) NNE of here earthquakes near Garfield County
Noble County, OK 52 km (32 mi) NW of here earthquakes near Noble County
Kay County, OK 54 km (33 mi) WSW of here earthquakes near Kay County
Alfalfa County, OK 56 km (34 mi) E of here earthquakes near Alfalfa County
Harper County, KS 68 km (42 mi) SSE of here earthquakes near Harper County

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

Aftershocks so far

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

  1. 2.5 6 km NNW of Jefferson, Oklahoma
  2. 2.0 6 km ENE of Caldwell, Kansas
  3. 1.8 6 km N of Caldwell, Kansas
  4. 2.6 3 km W of Braman, Oklahoma
  5. 3.0 5 km ESE of Jefferson, Oklahoma
  6. 2.6 6 km NNE of Wakita, Oklahoma
  7. 2.7 2 km NW of Fairmont, Oklahoma
  8. 2.8 5 km S of Nash, Oklahoma
  9. 2.1 7 km E of Bluff City, Kansas
  10. 1.7 7 km E of Bluff City, Kansas
  11. 1.8 9 km WSW of Hunnewell, Kansas
  12. 3.3 7 km NNW of Jefferson, Oklahoma
  13. 2.3 5 km NNE of Wakita, Oklahoma
  14. 3.0 7 km NNW of Jefferson, Oklahoma
  15. 1.8 7 km ENE of Caldwell, 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 4.2 on 2016-07-17 — it released about 45 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.