QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

10 km WSW of Portage, Utah

· 8.4 km deep · released about 36 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Oneida County 31 kmFranklin County 51 kmCache County 55 kmBox Elder County 68 kmWeber County 84 kmBannock County 85 kmBear Lake County 93 kmPower County 93 kmRich 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 2.0 (ml)
Depth
8.4 km below the surface
Felt
no reports yet
Nearest
Oneida County, 31 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2841 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 36 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 420,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 300,000× the energy of this one
  3. Around the size people start to feel M 3.0 27× the energy of this one
  4. This earthquake M 2.0 about 36 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 41.9355, -112.3547. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Oneida County, ID 31 km (19 mi) SSE of here earthquakes near Oneida County
Franklin County, ID 51 km (32 mi) WSW of here earthquakes near Franklin County
Cache County, UT 55 km (34 mi) WNW of here earthquakes near Cache County
Box Elder County, UT 68 km (42 mi) ENE of here earthquakes near Box Elder County
Weber County, UT 84 km (52 mi) NNW of here earthquakes near Weber County
Bannock County, ID 85 km (53 mi) S of here earthquakes near Bannock 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. 2.2 6 km SSW of Thatcher, Utah
  2. 1.6 5 km ENE of Howell, Utah
  3. 1.5 6 km SSW of Thatcher, Utah
  4. 2.0 6 km SSW of Thatcher, Utah
  5. 2.9 5 km SSW of Thatcher, Utah
  6. 1.5 6 km SSW of Thatcher, Utah
  7. 2.7 Utah
  8. 1.7 18 km S of Snowville, Utah
  9. 1.8 12 km S of Snowville, Utah
  10. 2.5 7 km SE of Howell, Utah
  11. 1.9 19 km SSW of Thatcher, Utah
  12. 1.6 12 km ESE of Snowville, Utah
  13. 2.0 12 km ESE of Snowville, Utah
  14. 1.5 13 km ESE of Snowville, Utah
  15. 1.8 11 km ENE of Snowville, Utah

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.