QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Wichita, KS

No earthquake was likely felt in Wichita in the 24 hours to 11:42 am CST (17:42 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 1.6 earthquake was recorded 50 km (31 mi) south-southwest of Wichita, KS, at 8:42 am CST on 23 February 2017 (14:42 UTC), 5.9 km deep.

USGS: 6 km NE of Milan, Kansas

49 km (31 mi) SSW of Wichita, KS

8:42 am CST, Feb 23, 2017 · · 5.9 km deep · released about 9 lb of TNT

10 km30 km60 km120 km N Sumner County 13 kmHarper County 42 kmSedgwick County 44 kmKingman County 55 kmGrant County 59 kmKay County 68 kmCowley County 69 kmReno County 83 kmHarvey 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
8:42 am CST on 23 February 2017 ()
Where
50 km (31 mi) south-southwest of Wichita, KS · earthquakes near Wichita
Magnitude
M 1.6 (ml)
Depth
5.9 km below the surface
Felt
no reports yet
Nearest
Sumner County, 13 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3541 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 8 km (5 mi) from the epicentre. In Wichita, 50 km away, the estimate is intensity I (not felt). 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, Wellington, Clearwater, Caldwell.

How big was it?

This earthquake released about 9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 9 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 37.3008, -97.6145. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sumner County, KS 13 km (8 mi) ESE earthquakes near Sumner County
Harper County, KS 42 km (26 mi) WSW earthquakes near Harper County
Sedgwick County, KS 44 km (28 mi) NNE earthquakes near Sedgwick County
Kingman County, KS 55 km (34 mi) WNW earthquakes near Kingman County
Grant County, OK 59 km (37 mi) SSW earthquakes near Grant County
Kay County, OK 68 km (42 mi) SE earthquakes near Kay 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. 2.4 2 km SW of Anthony, Kansas
  2. 1.7 9 km W of Bluff City, Kansas
  3. 2.0 9 km W of Bluff City, Kansas
  4. 1.9 10 km WNW of Caldwell, Kansas
  5. 2.2 8 km NNW of Wakita, Oklahoma
  6. 1.9 6 km ESE of Mayfield, Kansas
  7. 2.9 10 km W of Belle Plaine, Kansas
  8. 2.3 9 km ESE of Clearwater, Kansas
  9. 2.5 2 km ENE of South Haven, Kansas
  10. 2.1 8 km ESE of Caldwell, Kansas
  11. 1.6 5 km SSE of Freeport, Kansas
  12. 1.8 11 km NNW of Caldwell, Kansas
  13. 1.7 4 km NNW of Mayfield, Kansas
  14. 1.9 5 km SSE of Freeport, Kansas
  15. 2.7 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.

On USGS

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