QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6mb_lg

13 km WNW of Crawford, Nebraska

· 5.0 km deep · released about 240 lb of TNT

10 km30 km60 km120 km N Sioux County 30 kmDawes County 35 kmFall River County 57 kmBox Butte County 68 kmNiobrara County 83 kmGoshen County 94 kmScotts Bluff County 96 kmSheridan County 101 kmOglala Lakota County 107 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 2.6 (mb_lg)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Sioux County, 30 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1963 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

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.

Where

Epicentre 42.7092, -103.5676. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sioux County, NE 30 km (18 mi) NNE of here earthquakes near Sioux County
Dawes County, NE 35 km (22 mi) W of here earthquakes near Dawes County
Fall River County, SD 57 km (36 mi) S of here earthquakes near Fall River County
Box Butte County, NE 68 km (42 mi) NW of here earthquakes near Box Butte County
Niobrara County, WY 83 km (52 mi) ESE of here earthquakes near Niobrara County
Goshen County, WY 94 km (59 mi) NE of here earthquakes near Goshen 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.