QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

7 km W of Clark Fork, Idaho

· 5.0 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bonner County 33 kmKootenai County 60 kmBoundary County 73 kmLincoln County 76 kmPend Oreille County 84 kmSanders County 92 kmShoshone County 93 kmSpokane County 102 kmBenewah County 106 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
5.0 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Bonner County, 33 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 513 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 240 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 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 48.1414, -116.2778. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bonner County, ID 33 km (20 mi) SE of here earthquakes near Bonner County
Kootenai County, ID 60 km (38 mi) NNE of here earthquakes near Kootenai County
Boundary County, ID 73 km (45 mi) SSE of here earthquakes near Boundary County
Lincoln County, MT 76 km (47 mi) SW of here earthquakes near Lincoln County
Pend Oreille County, WA 84 km (52 mi) ESE of here earthquakes near Pend Oreille County
Sanders County, MT 92 km (57 mi) WNW of here earthquakes near Sanders County

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

Aftershocks so far

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

  1. 2.3 2 km NE of Dover, Idaho
  2. 2.2 8 km WNW of Dover, Idaho
  3. 1.8 6 km SSW of Athol, Idaho
  4. 1.6 13 km NNW of Athol, Idaho
  5. 3.1 20 km N of Heron, Montana
  6. 2.1 12 km NNW of Kootenai, Idaho
  7. 1.6 11 km NNW of Kootenai, Idaho
  8. 2.1 7 km WSW of Clark Fork, Idaho
  9. 1.6 18 km N of Kootenai, Idaho
  10. 2.2 8 km NW of Ponderay, Idaho
  11. 1.8 13 km SSW of East Hope, Idaho
  12. 2.1 8 km WNW of Dover, Idaho
  13. 1.8 9 km NNW of Ponderay, Idaho
  14. 1.5 11 km SSW of East Hope, Idaho
  15. 2.5 10 km SSW of East Hope, 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

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