QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5mb_lg

Earthquake near Conway Springs, KS

No earthquake was likely felt in Conway Springs in the 24 hours to 10:54 am CST (16:54 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 2.5 earthquake was recorded 9 km (6 mi) southwest of Conway Springs, KS, at 12:23 pm CST on 11 January 2017 (18:23 UTC), 5.0 km deep.

USGS: 9 km SW of Conway Springs, Kansas

51 km (32 mi) SW of Wichita, KS

12:23 pm CST, Jan 11, 2017 · · 5.0 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Sumner County 24 kmHarper County 35 kmKingman County 44 kmSedgwick County 44 kmGrant County 62 kmReno County 74 kmKay County 78 kmCowley County 80 kmHarvey County 83 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
12:23 pm CST on 11 January 2017 ()
Where
9 km (6 mi) southwest of Conway Springs, KS · earthquakes near Conway Springs
Magnitude
M 2.5 (mb_lg)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Sumner County, 24 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3512 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 46 km (29 mi) from the epicentre. In Conway Springs, 9 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 9 km, intensity III · Cheney 32 km, intensity II · Wellington 33 km, intensity II · Anthony 34 km, intensity II · Caldwell 36 km, intensity II · Belle Plaine 40 km, intensity II · Haysville 41 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 37.3443, -97.7275. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sumner County, KS 24 km (15 mi) ESE earthquakes near Sumner County
Harper County, KS 35 km (22 mi) WSW earthquakes near Harper County
Kingman County, KS 44 km (27 mi) WNW earthquakes near Kingman County
Sedgwick County, KS 44 km (27 mi) NNE earthquakes near Sedgwick County
Grant County, OK 62 km (39 mi) S earthquakes near Grant County
Reno County, KS 74 km (46 mi) NNW earthquakes near Reno County

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

Aftershocks so far

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

  1. 1.6 6 km ESE of Harper, Kansas
  2. 3.4 8 km SE of Harper, Kansas
  3. 2.1 7 km NNE of Attica, Kansas
  4. 1.8 5 km SSE of Freeport, Kansas
  5. 2.1 5 km SSE of Freeport, Kansas
  6. 1.5 5 km SSE of Freeport, Kansas
  7. 1.7 5 km ESE of Manchester, Oklahoma
  8. 1.7 5 km SSE of Freeport, Kansas
  9. 2.4 5 km SSE of Freeport, Kansas
  10. 2.9 5 km SSE of Freeport, Kansas
  11. 1.5 5 km SSE of Freeport, Kansas
  12. 1.8 3 km SSE of Argonia, Kansas
  13. 1.6 3 km SSE of Argonia, Kansas
  14. 2.0 6 km ESE of Anthony, Kansas
  15. 3.3 2 km ENE of South Haven, 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.