QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

52 km SE of West Yellowstone, Montana

· 8.2 km deep · released about 5.9 lb of TNT

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10 km30 km60 km120 km N Teton County 35 kmFremont County 66 kmTeton County 75 kmPark County 87 kmMadison County 99 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 1.5 (ml)
Depth
8.2 km below the surface
Felt
no reports yet
Nearest
Teton County, 35 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1661 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 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 44.3125, -110.6615. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, WY 35 km (22 mi) NNW of here earthquakes near Teton County
Fremont County, ID 66 km (41 mi) E of here earthquakes near Fremont County
Teton County, ID 75 km (47 mi) NE of here earthquakes near Teton County
Park County, WY 87 km (54 mi) WSW of here earthquakes near Park County
Madison County, ID 99 km (61 mi) NE of here earthquakes near Madison County
Bonneville County, ID 128 km (79 mi) NE of here earthquakes near Bonneville County

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

Aftershocks so far

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

  1. 2.0 Wyoming
  2. 1.6 35 km ESE of West Yellowstone, Montana
  3. 2.3 36 km ESE of West Yellowstone, Montana
  4. 2.6 Wyoming
  5. 2.0 35 km ESE of West Yellowstone, Montana
  6. 1.8 Wyoming
  7. 2.1 59 km ENE of Warm River, Idaho
  8. 1.5 57 km SE of West Yellowstone, Montana
  9. 1.5 57 km SE of West Yellowstone, Montana
  10. 2.4 58 km ENE of Warm River, Idaho
  11. 3.3 59 km ENE of Warm River, Idaho
  12. 1.6 58 km ENE of Warm River, Idaho
  13. 2.0 45 km SSE of Mammoth, Wyoming
  14. 2.1 42 km ESE of West Yellowstone, Montana
  15. 1.7 48 km N of Kelly, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.