QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

56 km SSW of Silver Gate, Montana

· 6.8 km deep · released about 9.6 lb of TNT

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10 km30 km60 km120 km N Park County 50 kmTeton County 56 kmFremont County 106 kmPark County 107 kmTeton County 117 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
6.8 km below the surface
Felt
no reports yet
Nearest
Park County, 50 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2603 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 9.6 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 1,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 99× the energy of this one
  4. This earthquake M 1.7 about 9.6 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 44.5288, -110.2173. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Park County, WY 50 km (31 mi) W of here earthquakes near Park County
Teton County, WY 56 km (35 mi) NNE of here earthquakes near Teton County
Fremont County, ID 106 km (66 mi) ENE of here earthquakes near Fremont County
Park County, MT 107 km (66 mi) SSE of here earthquakes near Park County
Teton County, ID 117 km (72 mi) NE of here earthquakes near Teton County
Carbon County, MT 121 km (75 mi) SW of here earthquakes near Carbon County

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

Aftershocks so far

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

  1. 1.5 50 km ESE of West Yellowstone, Montana
  2. 1.6 46 km SE of Mammoth, Wyoming
  3. 2.8 36 km S of Silver Gate, Montana
  4. 2.1 Wyoming
  5. 1.6 22 km SE of Mammoth, Wyoming
  6. 2.1 27 km S of Mammoth, Wyoming
  7. 1.5 58 km SSE of Mammoth, Wyoming
  8. 2.1 56 km SSE of Mammoth, Wyoming
  9. 1.6 40 km SSE of Mammoth, Wyoming
  10. 1.6 39 km SSE of Mammoth, Wyoming
  11. 2.2 39 km SSE of Mammoth, Wyoming
  12. 2.0 39 km SSE of Mammoth, Wyoming
  13. 1.7 Wyoming
  14. 1.7 39 km SSE of Mammoth, Wyoming
  15. 1.7 49 km SE 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.