QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Anthony, KS

No earthquake was likely felt in Anthony in the 24 hours to 6:30 am CST (12:30 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 1.5 earthquake was recorded 7 km (5 mi) south of Anthony, KS, at 6:45 pm CST on 1 January 2017 (00:45 UTC), 7.3 km deep.

USGS: 7 km S of Anthony, Kansas

91 km (57 mi) SW of Wichita, KS

6:45 pm CST, Jan 1, 2017 · · 7.3 km deep · released about 5.4 lb of TNT

10 km30 km60 km120 km N Harper County 11 kmGrant County 40 kmAlfalfa County 47 kmSumner County 52 kmKingman County 53 kmBarber County 59 kmGarfield County 82 kmWoods County 83 kmSedgwick 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
6:45 pm CST on 1 January 2017 ()
Where
7 km (5 mi) south of Anthony, KS · earthquakes near Anthony
Magnitude
M 1.5 (ml)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
Harper County, 11 km N
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 it was probably too small to be felt, even directly above it. In Anthony, 7 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.

Earthquakes near other towns within 30 km: Harper.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 2016-11-25 — about 5,600 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 37.0872, -98.0438. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Harper County, KS 11 km (7 mi) N earthquakes near Harper County
Grant County, OK 40 km (25 mi) SE earthquakes near Grant County
Alfalfa County, OK 47 km (29 mi) SSW earthquakes near Alfalfa County
Sumner County, KS 52 km (32 mi) ENE earthquakes near Sumner County
Kingman County, KS 53 km (33 mi) N earthquakes near Kingman County
Barber County, KS 59 km (37 mi) WNW earthquakes near Barber County

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

Aftershocks so far

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

  1. 2.2 3 km SE of Bluff City, Kansas
  2. 1.8 3 km SE of Bluff City, Kansas
  3. 3.2 7 km W of Wakita, Oklahoma
  4. 1.7 7 km ESE of Bluff City, Kansas
  5. 1.5 7 km SE of Bluff City, Kansas
  6. 1.8 2 km E of Anthony, Kansas
  7. 1.9 7 km ESE of Bluff City, Kansas
  8. 1.5 7 km ESE of Bluff City, Kansas
  9. 2.5 7 km W of Wakita, Oklahoma
  10. 1.6 5 km E of Manchester, Oklahoma
  11. 2.1 8 km N of Manchester, Oklahoma
  12. 3.0 1 km SSE of Medford, Oklahoma
  13. 2.8 13 km SSW of Wakita, Oklahoma
  14. 1.7 4 km SE of Freeport, Kansas
  15. 1.9 9 km WNW 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.