QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

Earthquake near Wellington, KS

No earthquake was likely felt in Wellington in the 24 hours to 9:35 pm CST (03:35 UTC). The last one was M 3.4, 194 km (120 mi) SSW, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Wellington

This page: a magnitude 2.1 earthquake was recorded 39 km (24 mi) west-southwest of Wellington, KS, at 12:21 am CST on 11 January 2017 (06:21 UTC), 4.4 km deep.

USGS: 6 km ESE of Freeport, Kansas

71 km (44 mi) SW of Wichita, KS

12:21 am CST, Jan 11, 2017 · · 4.4 km deep · released about 43 lb of TNT

10 km30 km60 km120 km N Harper County 24 kmSumner County 28 kmGrant County 42 kmKingman County 53 kmSedgwick County 64 kmAlfalfa County 67 kmKay County 70 kmBarber County 79 kmCowley County 85 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
12:21 am CST on 11 January 2017 ()
Where
39 km (24 mi) west-southwest of Wellington, KS · earthquakes near Wellington
Magnitude
M 2.1 (ml)
Depth
4.4 km below the surface
Felt
no reports yet
Nearest
Harper County, 24 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3542 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 28 km (17 mi) from the epicentre. In Wellington, 39 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Anthony 21 km, intensity II · Caldwell 23 km, intensity II · Conway Springs 28 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.0 on 2016-11-25 — about 710 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 37.1668, -97.7970. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Harper County, KS 24 km (15 mi) W earthquakes near Harper County
Sumner County, KS 28 km (17 mi) ENE earthquakes near Sumner County
Grant County, OK 42 km (26 mi) S earthquakes near Grant County
Kingman County, KS 53 km (33 mi) NW earthquakes near Kingman County
Sedgwick County, KS 64 km (40 mi) NNE earthquakes near Sedgwick County
Alfalfa County, OK 67 km (42 mi) SW earthquakes near Alfalfa County

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

Aftershocks so far

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

  1. 1.8 2 km SSE of Bluff City, Kansas
  2. 1.9 6 km ESE of Anthony, Kansas
  3. 3.0 2 km ESE of South Haven, Kansas
  4. 1.7 5 km S of Bluff City, Kansas
  5. 2.6 2 km ESE of South Haven, Kansas
  6. 3.0 14 km SSW of Manchester, Oklahoma
  7. 2.1 4 km E of Bluff City, Kansas
  8. 1.8 6 km E of Manchester, Oklahoma
  9. 1.6 6 km ESE of Anthony, Kansas
  10. 1.6 6 km ESE of Anthony, Kansas
  11. 2.2 3 km SE of Bluff City, Kansas
  12. 1.6 3 km SSE of Bluff City, Kansas
  13. 2.2 3 km SE of Bluff City, Kansas
  14. 1.8 3 km SE of Bluff City, Kansas
  15. 3.2 7 km W 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.