QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

17 km NW of Bonners Ferry, Idaho

· 4.4 km deep · released about 21 lb of TNT

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10 km30 km60 km120 km N Boundary County 3 kmBonner County 53 kmPend Oreille County 60 kmLincoln County 81 kmStevens County 109 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 1.9 (ml)
Depth
4.4 km below the surface
Felt
no reports yet
Nearest
Boundary County, 3 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1108 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 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 48.7953, -116.5020. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Boundary County, ID 3 km (2 mi) NE of here earthquakes near Boundary County
Bonner County, ID 53 km (33 mi) N of here earthquakes near Bonner County
Pend Oreille County, WA 60 km (38 mi) ENE of here earthquakes near Pend Oreille County
Lincoln County, MT 81 km (50 mi) WNW of here earthquakes near Lincoln County
Stevens County, WA 109 km (68 mi) ENE of here earthquakes near Stevens County
Sanders County, MT 151 km (94 mi) NW of here earthquakes near Sanders County

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

Aftershocks so far

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

  1. 1.5 36 km E of Metaline Falls, Washington
  2. 2.1 12 km NNW of Kootenai, Idaho
  3. 1.6 11 km NNW of Kootenai, Idaho
  4. 1.6 18 km N of Kootenai, Idaho
  5. 2.2 8 km NW of Ponderay, Idaho
  6. 1.8 9 km NNW of Ponderay, Idaho
  7. 2.3 15 km N of Kootenai, Idaho
  8. 1.7 11 km N of Kootenai, Idaho
  9. 2.7 19 km NNE of Kootenai, Idaho
  10. 1.8 15 km NW of Ponderay, Idaho
  11. 1.8 18 km N of Kootenai, Idaho
  12. 2.0 8 km NNW of Kootenai, Idaho
  13. 1.6 9 km NNW of Ponderay, 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.