QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Lamar, CO

No earthquake was likely felt in Lamar in the 24 hours to 6:05 pm MST (01:05 UTC). The last one was M 3.4, 237 km (147 mi) WSW, at 3:34 am MST on 8 November 2026, estimated intensity II (weak) in town; 2 felt reports to USGS. Every earthquake near Lamar

This page: a magnitude 1.6 earthquake was recorded 38 km (24 mi) north of Lamar, CO, at 6:32 am MST on 25 January 2026 (13:32 UTC), 5.0 km deep.

USGS: 12 km ESE of Eads, Colorado

6:32 am MST, Jan 25, 2026 · · 5.0 km deep · released about 7.6 lb of TNT

10 km30 km60 km120 km N Kiowa County 10 kmCheyenne County 45 kmProwers County 57 kmBent County 67 kmGreeley County 74 kmHamilton County 89 kmWallace County 95 kmLincoln County 97 kmKit Carson County 98 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
6:32 am MST on 25 January 2026 ()
Where
38 km (24 mi) north of Lamar, CO · earthquakes near Lamar
Magnitude
M 1.6 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Kiowa County, 10 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 204 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 6 km (4 mi) from the epicentre. In Lamar, 38 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.

How big was it?

This earthquake released about 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 38.4294, -102.6543. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kiowa County, CO 10 km (6 mi) WSW earthquakes near Kiowa County
Cheyenne County, CO 45 km (28 mi) N earthquakes near Cheyenne County
Prowers County, CO 57 km (36 mi) SSE earthquakes near Prowers County
Bent County, CO 67 km (41 mi) SW earthquakes near Bent County
Greeley County, KS 74 km (46 mi) E earthquakes near Greeley County
Hamilton County, KS 89 km (56 mi) ESE earthquakes near Hamilton County

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

Aftershocks so far

1 earthquake has been recorded within 50 km since this one.

  1. 1.8 6 km SW of Eads, Colorado

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.