QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

7 km NNE of Caldwell, Kansas

· 4.8 km deep · released about 35 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sumner County 17 kmGrant County 39 kmHarper County 46 kmKay County 49 kmSedgwick County 66 kmCowley County 67 kmKingman County 72 kmAlfalfa County 78 kmGarfield County 82 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 2.0 (ml)
Depth
4.8 km below the surface
Felt
no reports yet
Nearest
Sumner County, 17 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3496 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 35 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 440,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 310,000× the energy of this one
  3. Around the size people start to feel M 3.0 28× the energy of this one
  4. This earthquake M 2.0 about 35 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 37.0927, -97.5663. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sumner County, KS 17 km (11 mi) SSW of here earthquakes near Sumner County
Grant County, OK 39 km (24 mi) NNE of here earthquakes near Grant County
Harper County, KS 46 km (28 mi) ESE of here earthquakes near Harper County
Kay County, OK 49 km (30 mi) NW of here earthquakes near Kay County
Sedgwick County, KS 66 km (41 mi) S of here earthquakes near Sedgwick County
Cowley County, KS 67 km (41 mi) WSW of here earthquakes near Cowley 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. 2.0 6 km ESE of Anthony, Kansas
  2. 3.3 2 km ENE of South Haven, Kansas
  3. 1.7 3 km SSE of Argonia, Kansas
  4. 1.8 2 km SSE of Bluff City, Kansas
  5. 1.9 6 km ESE of Anthony, Kansas
  6. 3.0 2 km ESE of South Haven, Kansas
  7. 1.7 5 km S of Bluff City, Kansas
  8. 2.6 2 km ESE of South Haven, Kansas
  9. 2.1 4 km E of Bluff City, Kansas
  10. 1.8 6 km E of Manchester, Oklahoma
  11. 1.6 6 km ESE of Anthony, Kansas
  12. 1.6 6 km ESE of Anthony, Kansas
  13. 2.6 9 km W of Lamont, Oklahoma
  14. 2.2 3 km SE of Bluff City, Kansas
  15. 1.6 3 km SSE of Bluff City, 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 4.0 on 2016-11-25 — it released about 870 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.