QuakeIndex

quarry blast · reviewed by a seismologist

M 2.6ml

5 km ENE of Lewiston Orchards, Idaho

· -2.0 km deep · released about 280 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Nez Perce County 14 kmAsotin County 34 kmLewis County 42 kmGarfield County 48 kmLatah County 49 kmWhitman County 74 kmColumbia County 78 kmWallowa County 92 kmBenewah 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 2.6 (ml)
Depth
-2.0 km below the surface
Felt
no reports yet
Nearest
Nez Perce County, 14 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3449 days ago

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

USGS catalogues this as quarry blast, not an earthquake.

How big was it?

This earthquake released about 280 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 53,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 38,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.3× the energy of this one
  4. This earthquake M 2.6 about 280 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 46.4008, -116.9125. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Nez Perce County, ID 14 km (9 mi) WNW of here earthquakes near Nez Perce County
Asotin County, WA 34 km (21 mi) NE of here earthquakes near Asotin County
Lewis County, ID 42 km (26 mi) WNW of here earthquakes near Lewis County
Garfield County, WA 48 km (30 mi) E of here earthquakes near Garfield County
Latah County, ID 49 km (30 mi) SSW of here earthquakes near Latah County
Whitman County, WA 74 km (46 mi) SE of here earthquakes near Whitman County

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

Aftershocks so far

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

  1. 2.3 1 km NW of Asotin, Washington
  2. 2.1 5 km ENE of Pullman, Washington
  3. 1.7 4 km E of Uniontown, Washington
  4. 2.3 4 km ENE of Pullman, Washington
  5. 2.3 5 km SSW of Moscow, Idaho
  6. 1.7 6 km WSW of Troy, Idaho
  7. 1.6 8 km SSE of Pullman, Washington
  8. 2.1 2 km SSE of Lewiston Orchards, Idaho
  9. 2.2 2 km NE of Lewiston Orchards, Idaho
  10. 1.8 14 km E of Pomeroy, Washington
  11. 1.6 10 km ESE of Moscow, Idaho
  12. 1.9 7 km WSW of Deary, Idaho
  13. 1.9 7 km ENE of Troy, Idaho
  14. 2.1 5 km NNE of Pullman, Washington
  15. 1.9 8 km SSE of Pullman, Washington

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

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