QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

8 km ENE of West Yellowstone, Montana

· 13 km deep · released about 8.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fremont County 65 kmTeton County 86 kmGallatin County 92 kmPark County 93 kmMadison County 99 kmTeton County 106 kmMadison County 113 kmPark County 115 kmClark County 115 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 1.6 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Fremont County, 65 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2594 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 8.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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 44.7005, -111.0182. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fremont County, ID 65 km (40 mi) NE of here earthquakes near Fremont County
Teton County, WY 86 km (54 mi) NNW of here earthquakes near Teton County
Gallatin County, MT 92 km (57 mi) S of here earthquakes near Gallatin County
Park County, MT 93 km (58 mi) SSW of here earthquakes near Park County
Madison County, MT 99 km (61 mi) SE of here earthquakes near Madison County
Teton County, ID 106 km (66 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

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

  1. 3.4 40 km ESE of West Yellowstone, Montana
  2. 1.5 48 km ESE of West Yellowstone, Montana
  3. 1.5 27 km W of Hebgen Lake Estates, Montana
  4. 2.1 Wyoming
  5. 1.8 49 km ESE of West Yellowstone, Montana
  6. 1.7 46 km SE of West Yellowstone, Montana
  7. 2.8 15 km S of Mammoth, Wyoming
  8. 1.8 46 km ESE of West Yellowstone, Montana
  9. 3.0 17 km WNW of Hebgen Lake Estates, Montana
  10. 1.9 24 km SSW of Mammoth, Wyoming
  11. 2.0 24 km SSW of Mammoth, Wyoming
  12. 1.9 24 km SSW of Mammoth, Wyoming
  13. 2.5 24 km SSW of Mammoth, Wyoming
  14. 1.8 25 km SSW of Mammoth, Wyoming
  15. 1.8 24 km SSW 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2017-06-16 — it released about 13,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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