QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

15 km NW of Bovill, Idaho

· -0.6 km deep · released about 15 lb of TNT

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10 km30 km60 km120 km N Latah County 20 kmBenewah County 31 kmShoshone County 67 kmNez Perce County 70 kmClearwater County 74 kmWhitman County 75 kmLewis County 80 kmKootenai County 82 kmGarfield County 95 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 1.8 (ml)
Depth
-0.6 km below the surface
Felt
no reports yet
Nearest
Latah County, 20 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2650 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 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 46.9480, -116.5435. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Latah County, ID 20 km (13 mi) NE of here earthquakes near Latah County
Benewah County, ID 31 km (19 mi) SSE of here earthquakes near Benewah County
Shoshone County, ID 67 km (41 mi) SW of here earthquakes near Shoshone County
Nez Perce County, ID 70 km (44 mi) NNE of here earthquakes near Nez Perce County
Clearwater County, ID 74 km (46 mi) WNW of here earthquakes near Clearwater County
Whitman County, WA 75 km (47 mi) E of here earthquakes near Whitman County

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

Aftershocks so far

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

  1. 2.3 9 km ESE of Princeton, Idaho
  2. 2.3 5 km SSW of Moscow, Idaho
  3. 1.7 6 km WSW of Troy, Idaho
  4. 1.6 7 km SSE of Saint Maries, Idaho
  5. 2.2 8 km SW of Potlatch, Idaho
  6. 1.6 10 km ESE of Moscow, Idaho
  7. 1.9 7 km WSW of Deary, Idaho
  8. 1.9 7 km ENE of Troy, Idaho
  9. 2.1 6 km N of Onaway, Idaho
  10. 1.8 8 km W of Troy, Idaho
  11. 2.1 10 km SSW of Saint Maries, Idaho
  12. 1.9 4 km SSE of Saint Maries, Idaho
  13. 2.0 4 km E of Plummer, Idaho
  14. 1.6 6 km WSW of Troy, Idaho
  15. 1.6 2 km N 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.