QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Conway Springs, KS

No earthquake was likely felt in Conway Springs in the 24 hours to 2:20 pm CST (20:20 UTC). The last one was M 3.4, 201 km (125 mi) S, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Conway Springs

This page: a magnitude 2.4 earthquake was recorded 8 km (5 mi) southeast of Conway Springs, KS, at 7:42 am CDT on 16 September 2017 (12:42 UTC), 5.2 km deep.

USGS: 8 km SE of Conway Springs, Kansas

43 km (27 mi) SSW of Wichita, KS

7:42 am CDT, Sep 16, 2017 · · 5.2 km deep · released about 120 lb of TNT

10 km30 km60 km120 km N Sumner County 14 kmSedgwick County 39 kmHarper County 47 kmKingman County 56 kmGrant County 65 kmCowley County 66 kmKay County 70 kmHarvey County 79 kmButler County 80 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
7:42 am CDT on 16 September 2017 ()
Where
8 km (5 mi) southeast of Conway Springs, KS · earthquakes near Conway Springs
Magnitude
M 2.4 (ml)
Depth
5.2 km below the surface
Felt
no reports yet
Nearest
Sumner County, 14 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3256 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 41 km (25 mi) from the epicentre. In Conway Springs, 8 km away, the estimate is intensity III (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: Conway Springs 8 km, intensity III · Wellington 20 km, intensity II · Belle Plaine 26 km, intensity II · Haysville 31 km, intensity II · Derby 35 km, intensity II · Caldwell 35 km, intensity II · Cheney 37 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 37.3448, -97.5702. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sumner County, KS 14 km (9 mi) SSE earthquakes near Sumner County
Sedgwick County, KS 39 km (24 mi) NNE earthquakes near Sedgwick County
Harper County, KS 47 km (29 mi) WSW earthquakes near Harper County
Kingman County, KS 56 km (35 mi) WNW earthquakes near Kingman County
Grant County, OK 65 km (40 mi) SSW earthquakes near Grant County
Cowley County, KS 66 km (41 mi) E earthquakes near Cowley County

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

Aftershocks so far

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

  1. 1.5 6 km ESE of Freeport, Kansas
  2. 2.3 6 km NW of Renfrow, Oklahoma
  3. 1.9 3 km E of Freeport, Kansas
  4. 2.2 10 km N of Caldwell, Kansas
  5. 1.7 11 km N of Caldwell, Kansas
  6. 3.2 10 km N of Deer Creek, Oklahoma
  7. 1.7 4 km NW of Bluff City, Kansas
  8. 1.6 4 km ENE of Milan, Kansas
  9. 2.6 4 km ENE of Milan, Kansas
  10. 1.6 4 km ENE of Milan, Kansas
  11. 3.2 1 km SE of Renfrow, Oklahoma
  12. 1.8 3 km E of Freeport, Kansas
  13. 1.7 3 km E of Freeport, Kansas
  14. 1.5 2 km SE of Milan, Kansas
  15. 2.0 5 km E of Harper, 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.