QuakeIndex

Earthquake · reviewed by a seismologist

M 4.4ml

12 km E of Hebgen Lake Estates, Montana

· 9.3 km deep · released about 52 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fremont County 72 kmGallatin County 83 kmPark County 85 kmMadison County 92 kmTeton County 95 kmTeton County 114 kmClark County 118 kmPark County 118 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 4.4 (ml)
Depth
9.3 km below the surface
Felt
125 reports · strongest reported intensity IV
Measured shaking
intensity IV (ShakeMap)
USGS impact alert
green
Nearest
Fremont County, 72 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3327 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 125 people have reported feeling it to USGS.

How big was it?

This earthquake released about 52 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 3,200× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 140× the energy of this one
  3. Magna, Utah 2020 M 5.7 100× the energy of this one
  4. This earthquake M 4.4 about 52 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 110× 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 44.7813, -111.0332. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fremont County, ID 72 km (45 mi) NNE of here earthquakes near Fremont County
Gallatin County, MT 83 km (51 mi) S of here earthquakes near Gallatin County
Park County, MT 85 km (53 mi) SSW of here earthquakes near Park County
Madison County, MT 92 km (57 mi) SE of here earthquakes near Madison County
Teton County, WY 95 km (59 mi) NNW of here earthquakes near Teton County
Teton County, ID 114 km (71 mi) N of here earthquakes near Teton County

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

Aftershocks so far

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

  1. 3.0 12 km E of Hebgen Lake Estates, Montana
  2. 2.5 13 km E of Hebgen Lake Estates, Montana
  3. 1.8 13 km NE of West Yellowstone, Montana
  4. 1.6 13 km NE of West Yellowstone, Montana
  5. 2.2 12 km E of Hebgen Lake Estates, Montana
  6. 1.6 12 km ENE of Hebgen Lake Estates, Montana
  7. 1.6 13 km E of Hebgen Lake Estates, Montana
  8. 1.7 12 km E of Hebgen Lake Estates, Montana
  9. 1.7 13 km NE of West Yellowstone, Montana
  10. 2.0 13 km E of Hebgen Lake Estates, Montana
  11. 1.6 12 km E of Hebgen Lake Estates, Montana
  12. 1.9 13 km E of Hebgen Lake Estates, Montana
  13. 2.2 13 km E of Hebgen Lake Estates, Montana
  14. 1.6 13 km E of Hebgen Lake Estates, Montana
  15. 2.3 11 km E of Hebgen Lake Estates, 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.