QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6mb_lg

Earthquake near Valentine, NE

No earthquake was likely felt in Valentine in the 24 hours to 7:16 am CST (13:16 UTC). The last one was M 3.6, 240 km (149 mi) WNW, at 9:14 pm CST on 8 March 2025, estimated intensity II (weak) in town; 7 felt reports to USGS. Every earthquake near Valentine

This page: a magnitude 2.6 earthquake was recorded 47 km (29 mi) southwest of Valentine, NE, at 7:55 am CST on 16 December 2023 (13:55 UTC), 5.0 km deep. 1 person has reported feeling it to USGS.

USGS: 34 km SSE of Nenzel, Nebraska

7:55 am CST, Dec 16, 2023 · · 5.0 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Cherry County 7 kmTodd County 69 kmHooker County 79 kmBennett County 82 kmBrown County 94 kmThomas County 95 kmGrant County 100 kmMellette County 108 kmMcPherson County 109 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
7:55 am CST on 16 December 2023 ()
Where
47 km (29 mi) southwest of Valentine, NE · earthquakes near Valentine
Magnitude
M 2.6 (mb_lg)
Depth
5.0 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Cherry County, 7 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1000 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 51 km (32 mi) from the epicentre. In Valentine, 47 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 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 42.6279, -101.0161. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Cherry County, NE 7 km (4 mi) SSW earthquakes near Cherry County
Todd County, SD 69 km (43 mi) NNE earthquakes near Todd County
Hooker County, NE 79 km (49 mi) S earthquakes near Hooker County
Bennett County, SD 82 km (51 mi) NW earthquakes near Bennett County
Brown County, NE 94 km (59 mi) ESE earthquakes near Brown County
Thomas County, NE 95 km (59 mi) SSE earthquakes near Thomas 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.