QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

32 km E of West Yellowstone, Montana

· 2.9 km deep · released about 5.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Teton County 66 kmFremont County 76 kmPark County 88 kmPark County 95 kmTeton County 103 kmGallatin County 107 kmMadison County 119 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
2.9 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Teton County, 66 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2144 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 5.6 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 2,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.6 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 44.6130, -110.6975. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Teton County, WY 66 km (41 mi) NNW of here earthquakes near Teton County
Fremont County, ID 76 km (47 mi) NE of here earthquakes near Fremont County
Park County, WY 88 km (55 mi) W of here earthquakes near Park County
Park County, MT 95 km (59 mi) S of here earthquakes near Park County
Teton County, ID 103 km (64 mi) NNE of here earthquakes near Teton County
Gallatin County, MT 107 km (67 mi) SSE of here earthquakes near Gallatin 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. 2.0 41 km SSE of Mammoth, Wyoming
  2. 1.5 29 km E of West Yellowstone, Montana
  3. 2.0 31 km E of West Yellowstone, Montana
  4. 1.8 30 km E of West Yellowstone, Montana
  5. 1.7 31 km E of West Yellowstone, Montana
  6. 1.5 8 km ENE of Hebgen Lake Estates, Montana
  7. 1.6 8 km E of Hebgen Lake Estates, Montana
  8. 1.7 7 km E of Hebgen Lake Estates, Montana
  9. 1.5 22 km SSW of Mammoth, Wyoming
  10. 1.9 25 km S of Mammoth, Wyoming
  11. 2.4 26 km S of Mammoth, Wyoming
  12. 1.8 24 km S of Mammoth, Wyoming
  13. 3.2 26 km S of Mammoth, Wyoming
  14. 1.5 29 km ESE of West Yellowstone, Montana
  15. 1.6 14 km SSE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2017-06-16 — it released about 19,000 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.