QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

7 km ENE of Renfrow, Oklahoma

· 6.8 km deep · released about 330 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grant County 26 kmSumner County 34 kmKay County 40 kmHarper County 52 kmGarfield County 65 kmNoble County 68 kmAlfalfa County 71 kmCowley County 73 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 2.7 (ml)
Depth
6.8 km below the surface
Felt
5 reports · strongest reported intensity IV
Nearest
Grant County, 26 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1511 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 330 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 46,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 33,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.9× the energy of this one
  4. This earthquake M 2.7 about 330 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 36.9397, -97.5700. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grant County, OK 26 km (16 mi) NE of here earthquakes near Grant County
Sumner County, KS 34 km (21 mi) SSW of here earthquakes near Sumner County
Kay County, OK 40 km (25 mi) WNW of here earthquakes near Kay County
Harper County, KS 52 km (32 mi) ESE of here earthquakes near Harper County
Garfield County, OK 65 km (41 mi) NNE of here earthquakes near Garfield County
Noble County, OK 68 km (43 mi) NNW of here earthquakes near Noble 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. 1.6 12 km WSW of Hunnewell, Kansas
  2. 2.5 5 km NE of Argonia, Kansas
  3. 2.1 8 km NNE of Argonia, Kansas
  4. 2.5 6 km NNE of Argonia, Kansas
  5. 2.1 11 km WSW of Hunnewell, Kansas
  6. 1.6 9 km W of Lamont, Oklahoma
  7. 2.1 3 km SE of Hunnewell, Kansas
  8. 2.7 8 km NNW of Milan, Kansas
  9. 1.9 10 km W of Lamont, Oklahoma
  10. 2.0 10 km W of Lamont, Oklahoma
  11. 2.9 6 km E of Manchester, Oklahoma
  12. 2.1 10 km W of Lamont, Oklahoma
  13. 1.7 7 km E of Nescatunga, Oklahoma
  14. 1.7 9 km W of Lamont, Oklahoma
  15. 1.9 10 km W of Lamont, 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 4.4 on 2019-05-17 — it released about 370 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.