QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0mb_lg

4 km S of Brownlee, Nebraska

Yes. A magnitude 3.0 earthquake was recorded 4 km S of Brownlee, Nebraska, at 2:57 pm CST on 1 January 2025 (20:57 UTC), 5.0 km deep. 10 people have reported feeling it to USGS.

· 5.0 km deep · released about 950 lb of TNT

10 km30 km60 km120 km N Thomas County 45 kmCherry County 50 kmHooker County 55 kmBrown County 59 kmBlaine County 63 kmMcPherson County 78 kmLogan County 80 kmLoup County 100 kmRock County 100 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 3.0 (mb_lg)
Depth
5.0 km below the surface
Felt
10 reports · strongest reported intensity III
Nearest
Thomas County, 45 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 605 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. 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 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 42.2506, -100.6257. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Thomas County, NE 45 km (28 mi) S earthquakes near Thomas County
Cherry County, NE 50 km (31 mi) NW earthquakes near Cherry County
Hooker County, NE 55 km (34 mi) SW earthquakes near Hooker County
Brown County, NE 59 km (37 mi) ENE earthquakes near Brown County
Blaine County, NE 63 km (39 mi) SE earthquakes near Blaine County
McPherson County, NE 78 km (49 mi) SSW earthquakes near McPherson County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.