QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Anthony, KS

No earthquake was likely felt in Anthony in the 24 hours to 8:43 am CST (14:43 UTC). The last one was M 3.4, 172 km (107 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 Anthony

This page: a magnitude 1.9 earthquake was recorded 16 km (10 mi) southeast of Anthony, KS, at 5:55 pm CDT on 26 September 2016 (22:55 UTC), 6.5 km deep.

USGS: 1 km SW of Bluff City, Kansas

84 km (52 mi) SW of Wichita, KS

5:55 pm CDT, Sep 26, 2016 · · 6.5 km deep · released about 24 lb of TNT

10 km30 km60 km120 km N Harper County 21 kmGrant County 32 kmSumner County 39 kmAlfalfa County 54 kmKingman County 58 kmKay County 72 kmBarber County 73 kmGarfield County 77 kmSedgwick County 78 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
5:55 pm CDT on 26 September 2016 ()
Where
16 km (10 mi) southeast of Anthony, KS · earthquakes near Anthony
Magnitude
M 1.9 (ml)
Depth
6.5 km below the surface
Felt
no reports yet
Nearest
Harper County, 21 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3697 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 21 km (13 mi) from the epicentre. In Anthony, 16 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: Anthony 16 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 24 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 37.0693, -97.8860. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Harper County, KS 21 km (13 mi) NW earthquakes near Harper County
Grant County, OK 32 km (20 mi) SSE earthquakes near Grant County
Sumner County, KS 39 km (25 mi) ENE earthquakes near Sumner County
Alfalfa County, OK 54 km (34 mi) SW earthquakes near Alfalfa County
Kingman County, KS 58 km (36 mi) NNW earthquakes near Kingman County
Kay County, OK 72 km (45 mi) ESE earthquakes near Kay County

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

Aftershocks so far

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

  1. 1.8 8 km ESE of Bluff City, Kansas
  2. 1.6 4 km SE of Freeport, Kansas
  3. 2.3 4 km ESE of Caldwell, Kansas
  4. 1.8 5 km ESE of Caldwell, Kansas
  5. 2.2 9 km ESE of Bluff City, Kansas
  6. 3.0 8 km E of Nescatunga, Oklahoma
  7. 1.7 5 km SE of Freeport, Kansas
  8. 2.9 Oklahoma
  9. 2.0 4 km SW of Harper, Kansas
  10. 1.5 6 km ENE of Caldwell, Kansas
  11. 1.9 7 km ESE of Bluff City, Kansas
  12. 1.7 Kansas
  13. 2.1 5 km SSE of Freeport, Kansas
  14. 1.9 5 km SSE of Freeport, Kansas
  15. 2.5 5 km SSE of Freeport, 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.