QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0mb_lg

Earthquake near Hays, KS

No earthquake was likely felt in Hays in the 24 hours to 4:10 am CST (10:10 UTC). The last one was M 2.7, 55 km (34 mi) ENE, at 12:18 pm CDT on 15 October 2026, estimated intensity II (weak) in town. Every earthquake near Hays

This page: a magnitude 3.0 earthquake was recorded 40 km (25 mi) north-northwest of Hays, KS, at 6:46 am CDT on 15 July 2025 (11:46 UTC), 12 km deep. 3 people have reported feeling it to USGS.

USGS: 2 km SW of Zurich, Kansas

6:46 am CDT, Jul 15, 2025 · · 12 km deep · released about 950 lb of TNT

10 km30 km60 km120 km N Rooks County 18 kmEllis County 36 kmGraham County 39 kmTrego County 48 kmOsborne County 61 kmPhillips County 64 kmRussell County 68 kmNorton County 73 kmRush County 79 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
6:46 am CDT on 15 July 2025 ()
Where
40 km (25 mi) north-northwest of Hays, KS · earthquakes near Hays
Magnitude
M 3.0 (mb_lg)
Depth
12 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
Rooks County, 18 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 350 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 72 km (45 mi) from the epicentre. In Hays, 40 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: Plainville 14 km, intensity III · Stockton 29 km, intensity III · Ellis 33 km, intensity III · Hill City 37 km, intensity III · Hays 40 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

The largest earthquake within 50 km since 2016 was M 4.6 on 2019-06-22 — about 250 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 39.2201, -99.4601. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Rooks County, KS 18 km (11 mi) NE earthquakes near Rooks County
Ellis County, KS 36 km (22 mi) SSE earthquakes near Ellis County
Graham County, KS 39 km (24 mi) WNW earthquakes near Graham County
Trego County, KS 48 km (30 mi) SW earthquakes near Trego County
Osborne County, KS 61 km (38 mi) ENE earthquakes near Osborne County
Phillips County, KS 64 km (40 mi) N earthquakes near Phillips County

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

Aftershocks so far

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

  1. 3.0 2 km SSW of Bogue, Kansas
  2. 2.5 9 km S of Bogue, Kansas
  3. 2.5 9 km SW of Natoma, Kansas
  4. 2.4 12 km NE of Damar, Kansas
  5. 2.9 7 km N of Hays, Kansas
  6. 2.8 10 km SSW of Stockton, Kansas
  7. 2.8 8 km NNW of Stockton, Kansas
  8. 3.3 7 km NNW of Stockton, Kansas
  9. 2.5 1 km NE of Zurich, Kansas
  10. 2.5 11 km NNE of Stockton, Kansas
  11. 2.6 14 km WSW of Natoma, Kansas
  12. 2.5 3 km NE of Bogue, Kansas
  13. 2.8 16 km S of Hill City, 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.