QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2mb_lg

6 km NE of South Haven, Kansas

· 5.0 km deep · released about 60 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sumner County 21 kmKay County 35 kmCowley County 48 kmGrant County 51 kmHarper County 65 kmSedgwick County 67 kmNoble County 79 kmKingman County 87 kmGarfield 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 2.2 (mb_lg)
Depth
5.0 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Sumner County, 21 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2706 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 37.0883, -97.3489. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sumner County, KS 21 km (13 mi) SE of here earthquakes near Sumner County
Kay County, OK 35 km (22 mi) NNW of here earthquakes near Kay County
Cowley County, KS 48 km (30 mi) WSW of here earthquakes near Cowley County
Grant County, OK 51 km (32 mi) NE of here earthquakes near Grant County
Harper County, KS 65 km (40 mi) E of here earthquakes near Harper County
Sedgwick County, KS 67 km (41 mi) S of here earthquakes near Sedgwick County

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

Aftershocks so far

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

  1. 2.4 8 km N of Nardin, Oklahoma
  2. 2.1 7 km N of Nardin, Oklahoma
  3. 1.8 9 km NE of Caldwell, Kansas
  4. 2.7 6 km N of Nardin, Oklahoma
  5. 2.5 8 km N of Nardin, Oklahoma
  6. 2.7 8 km N of Nardin, Oklahoma
  7. 2.5 8 km N of Nardin, Oklahoma
  8. 2.3 7 km N of Nardin, Oklahoma
  9. 2.8 8 km N of Nardin, Oklahoma
  10. 2.3 6 km N of Nardin, Oklahoma
  11. 1.9 Kansas
  12. 1.9 2 km SSE of Bluff City, Kansas
  13. 1.8 3 km ENE of Freeport, Kansas
  14. 1.6 3 km ENE of Freeport, Kansas
  15. 2.3 9 km SSE of Milan, 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 4.1 on 2017-03-29 — it released about 710 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.