QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

35 km S of Silver Gate, Montana

· 17 km deep · released about 130 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Park County 38 kmTeton County 79 kmCarbon County 96 kmPark County 97 kmStillwater 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 2.4 (ml)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Park County, 38 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2063 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 130 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 120,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 83,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.4× the energy of this one
  4. This earthquake M 2.4 about 130 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 44.6858, -109.9822. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Park County, WY 38 km (23 mi) NW of here earthquakes near Park County
Teton County, WY 79 km (49 mi) NNE of here earthquakes near Teton County
Carbon County, MT 96 km (60 mi) SW of here earthquakes near Carbon County
Park County, MT 97 km (60 mi) SSE of here earthquakes near Park County
Stillwater County, MT 118 km (73 mi) SSW of here earthquakes near Stillwater County
Fremont County, ID 130 km (81 mi) ENE of here earthquakes near Fremont 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. 1.6 65 km SSE of Mammoth, Wyoming
  2. 2.1 64 km ESE of West Yellowstone, Montana
  3. 1.9 63 km ESE of West Yellowstone, Montana
  4. 2.2 63 km ESE of West Yellowstone, Montana
  5. 1.5 62 km ESE of West Yellowstone, Montana
  6. 1.9 64 km ESE of West Yellowstone, Montana
  7. 2.1 63 km ESE of West Yellowstone, Montana
  8. 1.5 64 km ESE of West Yellowstone, Montana
  9. 2.1 63 km ESE of West Yellowstone, Montana
  10. 2.4 64 km ESE of West Yellowstone, Montana
  11. 1.9 63 km ESE of West Yellowstone, Montana
  12. 1.6 64 km ESE of West Yellowstone, Montana
  13. 1.7 63 km ESE of West Yellowstone, Montana
  14. 1.9 64 km ESE of West Yellowstone, Montana
  15. 1.9 64 km ESE of West Yellowstone, 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.