QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

8 km NNW of Nezperce, Idaho

· 16 km deep · released about 52 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lewis County 12 kmNez Perce County 36 kmClearwater County 64 kmLatah County 66 kmAsotin County 73 kmIdaho County 82 kmGarfield County 96 kmWallowa County 105 kmBenewah County 105 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 2.2 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Lewis County, 12 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3736 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 52 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 290,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 52 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 46.3027, -116.2982. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lewis County, ID 12 km (8 mi) NE of here earthquakes near Lewis County
Nez Perce County, ID 36 km (22 mi) E of here earthquakes near Nez Perce County
Clearwater County, ID 64 km (40 mi) SW of here earthquakes near Clearwater County
Latah County, ID 66 km (41 mi) SSE of here earthquakes near Latah County
Asotin County, WA 73 km (45 mi) E of here earthquakes near Asotin County
Idaho County, ID 82 km (51 mi) NW of here earthquakes near Idaho County

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

Aftershocks so far

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

  1. 2.2 4 km SSE of Grangeville, Idaho
  2. 2.1 7 km SSW of Orofino, Idaho
  3. 2.2 11 km SE of Weippe, Idaho
  4. 1.7 Northern Idaho
  5. 1.5 7 km WNW of Grangeville, Idaho
  6. 2.0 4 km E of Peck, Idaho
  7. 2.9 8 km SSW of Culdesac, Idaho
  8. 2.3 10 km SSE of Deary, Idaho
  9. 2.1 2 km NE of Sweetwater, Idaho
  10. 1.6 2 km E of Kamiah, Idaho
  11. 2.7 16 km SE of Deary, Idaho
  12. 1.6 5 km NNE of Kendrick, Idaho
  13. 1.9 5 km NW of Pierce, Idaho
  14. 2.2 3 km NW of Pierce, 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.