QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

4 km WNW of Wye, Montana

· 12 km deep · released about 8.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Missoula County 22 kmMineral County 71 kmLake County 74 kmGranite County 86 kmPowell County 96 kmRavalli County 100 kmSanders County 115 kmClearwater County 117 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 1.6 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Missoula County, 22 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2330 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 8.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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 46.9773, -114.1758. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Missoula County, MT 22 km (14 mi) WSW of here earthquakes near Missoula County
Mineral County, MT 71 km (44 mi) ESE of here earthquakes near Mineral County
Lake County, MT 74 km (46 mi) S of here earthquakes near Lake County
Granite County, MT 86 km (54 mi) NW of here earthquakes near Granite County
Powell County, MT 96 km (59 mi) W of here earthquakes near Powell County
Ravalli County, MT 100 km (62 mi) N of here earthquakes near Ravalli County

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

Aftershocks so far

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

  1. 1.9 2 km NNE of Alberton, Montana
  2. 1.5 6 km S of Frenchtown, Montana
  3. 1.7 6 km S of Frenchtown, Montana
  4. 1.9 18 km E of Saint Ignatius, Montana
  5. 1.9 6 km S of Huson, Montana
  6. 1.9 3 km SSW of Alberton, Montana
  7. 1.7 2 km ENE of Alberton, Montana
  8. 2.2 2 km NE of Alberton, Montana
  9. 1.7 4 km WNW of Wye, Montana
  10. 1.7 4 km SSW of Alberton, Montana
  11. 2.1 3 km S of Alberton, Montana
  12. 2.1 5 km WNW of Saint Ignatius, Montana
  13. 2.2 1 km SE of Alberton, Montana
  14. 1.5 5 km NE of Saint Ignatius, Montana
  15. 1.8 17 km E of Arlee, Montana

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.