QuakeIndex

quarry blast · reviewed by a seismologist

M 1.7ml

4 km NNE of Weippe, Idaho

· -2.0 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Clearwater County 36 kmLewis County 43 kmNez Perce County 65 kmIdaho County 72 kmLatah County 76 kmMineral County 102 kmAsotin County 103 kmShoshone County 104 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 1.7 (ml)
Depth
-2.0 km below the surface
Felt
no reports yet
Nearest
Clearwater County, 36 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3804 days ago

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

USGS catalogues this as quarry blast, not an earthquake.

How big was it?

This earthquake released about 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 95× the energy of this one
  4. This earthquake M 1.7 about 10 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 46.4110, -115.9245. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clearwater County, ID 36 km (22 mi) SW of here earthquakes near Clearwater County
Lewis County, ID 43 km (27 mi) ENE of here earthquakes near Lewis County
Nez Perce County, ID 65 km (40 mi) E of here earthquakes near Nez Perce County
Idaho County, ID 72 km (45 mi) NNW of here earthquakes near Idaho County
Latah County, ID 76 km (48 mi) SE of here earthquakes near Latah County
Mineral County, MT 102 km (64 mi) SW of here earthquakes near Mineral 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. 2.1 7 km SSW of Orofino, Idaho
  2. 2.2 11 km SE of Weippe, Idaho
  3. 1.7 28 km ESE of Weippe, Idaho
  4. 1.6 2 km N of Elk River, Idaho
  5. 1.7 Northern Idaho
  6. 2.0 4 km E of Peck, Idaho
  7. 1.6 2 km E of Kamiah, Idaho
  8. 1.8 16 km NNW of Pierce, Idaho
  9. 2.7 16 km SE of Deary, Idaho
  10. 1.9 5 km NW of Pierce, Idaho
  11. 2.2 3 km NW of Pierce, Idaho
  12. 2.2 8 km NNW of Nezperce, Idaho
  13. 2.0 15 km SSW of Elk River, Idaho
  14. 2.0 7 km SW of Elk River, 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.