QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

2 km W of Mullan, Idaho

· 2.1 km deep · released about 1,900 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shoshone County 14 kmSanders County 58 kmBenewah County 67 kmMineral County 68 kmKootenai County 69 kmClearwater County 90 kmLatah County 99 kmBonner County 112 kmSpokane County 119 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 3.2 (ml)
Depth
2.1 km below the surface
Felt
3 reports · strongest reported intensity IV
Nearest
Shoshone County, 14 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1561 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× more

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 47.4692, -115.8286. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shoshone County, ID 14 km (9 mi) NNE of here earthquakes near Shoshone County
Sanders County, MT 58 km (36 mi) WSW of here earthquakes near Sanders County
Benewah County, ID 67 km (41 mi) ENE of here earthquakes near Benewah County
Mineral County, MT 68 km (42 mi) NW of here earthquakes near Mineral County
Kootenai County, ID 69 km (43 mi) ESE of here earthquakes near Kootenai County
Clearwater County, ID 90 km (56 mi) N of here earthquakes near Clearwater County

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

Aftershocks so far

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

  1. 2.4 1 km NNE of Mullan, Idaho
  2. 2.1 3 km SW of Wallace, Idaho
  3. 1.5 1 km SE of Mullan, Idaho
  4. 2.2 0 km NNE of Mullan, Idaho
  5. 2.3 0 km E of Mullan, Idaho
  6. 2.4 1 km SSW of Mullan, Idaho
  7. 2.1 10 km NNE of Wallace, Idaho
  8. 2.1 1 km NE of Mullan, Idaho
  9. 2.3 1 km NE of Mullan, Idaho
  10. 1.5 3 km S of Osburn, Idaho
  11. 1.6 0 km SE of Mullan, Idaho
  12. 1.5 Idaho-Montana border region
  13. 1.9 2 km SSE of Mullan, Idaho
  14. 2.1 Idaho-Montana border region
  15. 1.7 2 km NNW of Mullan, 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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