QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

Earthquake near Anthony, KS

No earthquake was likely felt in Anthony in the 24 hours to 10:46 am CST (16:46 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 3.0 earthquake was recorded 7 km (4 mi) south of Anthony, KS, at 4:34 pm CDT on 19 March 2016 (21:34 UTC), 6.3 km deep. 2 people have reported feeling it to USGS.

USGS: 6 km S of Anthony, Kansas

90 km (56 mi) SW of Wichita, KS

4:34 pm CDT, Mar 19, 2016 · · 6.3 km deep · released about 950 lb of TNT

10 km30 km60 km120 km N Harper County 11 kmGrant County 40 kmAlfalfa County 48 kmSumner County 50 kmKingman County 52 kmBarber County 60 kmSedgwick County 82 kmGarfield County 82 kmKay 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
4:34 pm CDT on 19 March 2016 ()
Where
7 km (4 mi) south of Anthony, KS · earthquakes near Anthony
Magnitude
M 3.0 (ml)
Depth
6.3 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Harper County, 11 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1562 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 73 km (45 mi) from the epicentre. In Anthony, 7 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: Anthony 7 km, intensity III · Caldwell 38 km, intensity III · Conway Springs 47 km, intensity II · Cherokee 48 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 37.0948, -98.0283. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Harper County, KS 11 km (7 mi) NNW earthquakes near Harper County
Grant County, OK 40 km (25 mi) SSE earthquakes near Grant County
Alfalfa County, OK 48 km (30 mi) SSW earthquakes near Alfalfa County
Sumner County, KS 50 km (31 mi) ENE earthquakes near Sumner County
Kingman County, KS 52 km (32 mi) NNW earthquakes near Kingman County
Barber County, KS 60 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

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

  1. 2.8 4 km SSW of Renfrow, Oklahoma
  2. 2.9 6 km SW of Manchester, Oklahoma
  3. 2.1 6 km NNE of Bluff City, Kansas
  4. 1.7 12 km NNW of Caldwell, Kansas
  5. 1.8 Kansas
  6. 1.5 5 km ESE of Bluff City, Kansas
  7. 1.7 12 km NNW of Caldwell, Kansas
  8. 1.7 11 km W of Caldwell, Kansas
  9. 2.1 12 km NNW of Caldwell, Kansas
  10. 2.4 12 km NNW of Caldwell, Kansas
  11. 3.4 3 km SSW of Renfrow, Oklahoma
  12. 2.0 12 km NNW of Caldwell, Kansas
  13. 3.0 10 km SW of Wakita, Oklahoma
  14. 1.6 13 km NNW of Caldwell, Kansas
  15. 2.2 12 km NNW of Caldwell, 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.