QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6mb_lg

Earthquake near Wichita, KS

No earthquake was likely felt in Wichita in the 24 hours to 5:31 pm CST (23:31 UTC). The last one was M 3.4, 240 km (149 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 Wichita

This page: a magnitude 2.6 earthquake was recorded 46 km (28 mi) south-southwest of Wichita, KS, at 2:23 pm CST on 11 January 2021 (20:23 UTC), 5.0 km deep. 8 people have reported feeling it to USGS.

USGS: 7 km NE of Mayfield, Kansas

45 km (28 mi) SSW of Wichita, KS

2:23 pm CST, Jan 11, 2021 · · 5.0 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Sumner County 7 kmSedgwick County 43 kmHarper County 53 kmCowley County 57 kmKay County 62 kmGrant County 63 kmKingman County 65 kmButler County 77 kmHarvey County 84 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
2:23 pm CST on 11 January 2021 ()
Where
46 km (28 mi) south-southwest of Wichita, KS · earthquakes near Wichita
Magnitude
M 2.6 (mb_lg)
Depth
5.0 km below the surface
Felt
8 reports · strongest reported intensity III
Nearest
Sumner County, 7 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2062 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 51 km (32 mi) from the epicentre. In Wichita, 46 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: Wellington 10 km, intensity III · Conway Springs 18 km, intensity III · Belle Plaine 21 km, intensity III · Haysville 32 km, intensity II · Caldwell 32 km, intensity II · Derby 33 km, intensity II · Cheney 45 km, intensity II · Wichita 46 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 2019-01-16 — about 130 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 37.2986, -97.4802. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sumner County, KS 7 km (4 mi) S earthquakes near Sumner County
Sedgwick County, KS 43 km (26 mi) N earthquakes near Sedgwick County
Harper County, KS 53 km (33 mi) WSW earthquakes near Harper County
Cowley County, KS 57 km (36 mi) E earthquakes near Cowley County
Kay County, OK 62 km (38 mi) SSE earthquakes near Kay County
Grant County, OK 63 km (39 mi) SSW earthquakes near Grant County

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

Aftershocks so far

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

  1. 2.5 6 km NNE of Argonia, Kansas
  2. 2.1 11 km WSW of Hunnewell, Kansas
  3. 2.1 3 km SE of Hunnewell, Kansas
  4. 2.7 8 km NNW of Milan, Kansas
  5. 1.5 2 km NW of Renfrow, Oklahoma
  6. 2.5 2 km NW of McConnell AFB, Kansas
  7. 2.0 6 km NE of Norwich, Kansas
  8. 2.0 5 km NE of Braman, Oklahoma
  9. 1.9 2 km NW of Renfrow, Oklahoma
  10. 1.8 2 km NW of Renfrow, Oklahoma
  11. 2.4 2 km NW of Renfrow, Oklahoma
  12. 1.6 2 km NW of Renfrow, Oklahoma
  13. 1.5 2 km NW of Renfrow, Oklahoma
  14. 1.8 3 km NW of Renfrow, Oklahoma
  15. 2.4 2 km NW of Renfrow, 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.