QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Wellington, KS

No earthquake was likely felt in Wellington in the 24 hours to 11:38 am CST (17:38 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 1.8 earthquake was recorded 35 km (22 mi) west of Wellington, KS, at 6:04 am CDT on 19 September 2016 (11:04 UTC), 7.9 km deep.

USGS: 5 km S of Argonia, Kansas

64 km (40 mi) SW of Wichita, KS

6:04 am CDT, Sep 19, 2016 · · 7.9 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Sumner County 24 kmHarper County 27 kmGrant County 48 kmKingman County 50 kmSedgwick County 58 kmKay County 71 kmAlfalfa County 74 kmBarber County 81 kmCowley 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
6:04 am CDT on 19 September 2016 ()
Where
35 km (22 mi) west of Wellington, KS · earthquakes near Wellington
Magnitude
M 1.8 (ml)
Depth
7.9 km below the surface
Felt
no reports yet
Nearest
Sumner County, 24 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3705 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 14 km (9 mi) from the epicentre. In Wellington, 35 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.

Earthquakes near other towns within 30 km: Conway Springs, Harper, Anthony, Caldwell.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 730,000× the energy of this one
  3. Around the size people start to feel M 3.0 65× the energy of this one
  4. This earthquake M 1.8 about 15 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 37.2200, -97.7683. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sumner County, KS 24 km (15 mi) E earthquakes near Sumner County
Harper County, KS 27 km (17 mi) W earthquakes near Harper County
Grant County, OK 48 km (30 mi) S earthquakes near Grant County
Kingman County, KS 50 km (31 mi) NW earthquakes near Kingman County
Sedgwick County, KS 58 km (36 mi) NNE earthquakes near Sedgwick County
Kay County, OK 71 km (44 mi) SE earthquakes near Kay County

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

Aftershocks so far

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

  1. 1.9 7 km ESE of Bluff City, Kansas
  2. 1.7 Kansas
  3. 2.1 5 km SSE of Freeport, Kansas
  4. 1.9 5 km SSE of Freeport, Kansas
  5. 2.5 5 km SSE of Freeport, Kansas
  6. 1.7 9 km W of Bluff City, Kansas
  7. 1.7 9 km ESE of Bluff City, Kansas
  8. 1.5 9 km ESE of Bluff City, KS
  9. 1.6 5 km SSE of Freeport, Kansas
  10. 1.6 9 km W of Bluff City, Kansas
  11. 2.7 5 km SSE of Freeport, Kansas
  12. 3.5 5 km SSE of Freeport, Kansas
  13. 3.3 2 km WNW of Deer Creek, Oklahoma
  14. 2.2 0 km N of Manchester, Oklahoma
  15. 2.7 3 km ENE of Medford, 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.