QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

19 km ENE of Stryker, Montana

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

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Flathead County 64 kmLincoln County 71 kmGlacier County 115 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
14 km below the surface
Felt
no reports yet
Nearest
Flathead County, 64 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2023 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

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 48.7652, -114.5506. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Flathead County, MT 64 km (40 mi) NW of here earthquakes near Flathead County
Lincoln County, MT 71 km (44 mi) ENE of here earthquakes near Lincoln County
Glacier County, MT 115 km (71 mi) W of here earthquakes near Glacier County
Sanders County, MT 121 km (75 mi) NNE of here earthquakes near Sanders County

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

Aftershocks so far

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

  1. 2.3 6 km NNE of Olney, Montana
  2. 2.2 19 km E of Indian Springs, Montana
  3. 2.1 10 km SW of Whitefish, Montana
  4. 1.9 19 km NE of Indian Springs, Montana
  5. 1.5 30 km NE of Indian Springs, Montana
  6. 2.6 7 km WSW of Whitefish, 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.