QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

50 km ESE of West Yellowstone, Montana

· 6.1 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Teton County 43 kmFremont County 76 kmPark County 78 kmTeton County 89 kmMadison County 112 kmPark County 116 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 1.7 (ml)
Depth
6.1 km below the surface
Felt
no reports yet
Nearest
Teton County, 43 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1014 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 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 930,000× the energy of this one
  3. Around the size people start to feel M 3.0 83× the energy of this one
  4. This earthquake M 1.7 about 11 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 44.4178, -110.5693. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, WY 43 km (26 mi) NNW of here earthquakes near Teton County
Fremont County, ID 76 km (47 mi) ENE of here earthquakes near Fremont County
Park County, WY 78 km (48 mi) W of here earthquakes near Park County
Teton County, ID 89 km (55 mi) NE of here earthquakes near Teton County
Madison County, ID 112 km (69 mi) NE of here earthquakes near Madison County
Park County, MT 116 km (72 mi) S of here earthquakes near Park County

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

Aftershocks so far

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

  1. 1.6 10 km S of West Yellowstone, Montana
  2. 1.6 37 km ESE of West Yellowstone, Montana
  3. 1.5 25 km SSE of West Yellowstone, Montana
  4. 2.3 49 km SE of West Yellowstone, Montana
  5. 1.5 43 km SE of Mammoth, Wyoming
  6. 2.1 38 km SSE of Mammoth, Wyoming
  7. 2.6 38 km SSE of Mammoth, Wyoming
  8. 2.1 24 km SSW of Mammoth, Wyoming
  9. 1.8 24 km SSW of Mammoth, Wyoming
  10. 1.9 25 km SSW of Mammoth, Wyoming
  11. 1.5 25 km SSW of Mammoth, Wyoming
  12. 1.5 23 km SSW of Mammoth, Wyoming
  13. 2.0 24 km SSW of Mammoth, Wyoming
  14. 1.5 36 km ESE of West Yellowstone, Montana
  15. 2.3 39 km SE of Mammoth, Wyoming

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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