QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

8 km SSW of Culdesac, Idaho

· 10 km deep · released about 680 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Nez Perce County 6 kmLewis County 22 kmAsotin County 43 kmLatah County 57 kmGarfield County 66 kmWallowa County 87 kmClearwater County 90 kmWhitman County 93 kmColumbia County 93 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
Magnitude
M 2.9 (ml)
Depth
10 km below the surface
Felt
12 reports · strongest reported intensity IV
Nearest
Nez Perce County, 6 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1736 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 12 people have reported feeling it to USGS.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 46.3031, -116.7000. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Nez Perce County, ID 6 km (4 mi) SE of here earthquakes near Nez Perce County
Lewis County, ID 22 km (14 mi) WNW of here earthquakes near Lewis County
Asotin County, WA 43 km (27 mi) ENE of here earthquakes near Asotin County
Latah County, ID 57 km (36 mi) S of here earthquakes near Latah County
Garfield County, WA 66 km (41 mi) ESE of here earthquakes near Garfield County
Wallowa County, OR 87 km (54 mi) NNE of here earthquakes near Wallowa County

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

Aftershocks so far

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

  1. 2.3 1 km NW of Asotin, Washington
  2. 1.7 4 km E of Uniontown, Washington
  3. 2.3 5 km SSW of Moscow, Idaho
  4. 1.7 6 km WSW of Troy, Idaho
  5. 2.1 2 km SSE of Lewiston Orchards, Idaho
  6. 2.2 2 km NE of Lewiston Orchards, Idaho
  7. 1.6 10 km ESE of Moscow, Idaho
  8. 2.1 7 km SSW of Orofino, Idaho
  9. 1.8 8 km W of Troy, Idaho
  10. 1.6 16 km SSW of Sweetwater, Idaho
  11. 2.2 1 km WNW of Lewiston Orchards, Idaho
  12. 1.8 6 km SSW of Genesee, Idaho
  13. 2.0 3 km SSE of Lewiston Orchards, Idaho
  14. 1.6 6 km WSW of Troy, Idaho
  15. 1.6 5 km WNW of Genesee, Idaho

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.