QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

10 km WSW of Portage, Utah

· 5.9 km deep · released about 920 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Oneida County 32 kmFranklin County 51 kmCache County 54 kmBox Elder County 68 kmWeber County 83 kmBannock County 86 kmBear Lake County 93 kmPower County 95 kmRich County 97 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 3.0 (ml)
Depth
5.9 km below the surface
Felt
7 reports · strongest reported intensity IV
Measured shaking
intensity II (ShakeMap)
Nearest
Oneida County, 32 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3260 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 7 people have reported feeling it to USGS.

How big was it?

This earthquake released about 920 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 370,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 920 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 41.9248, -112.3445. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Oneida County, ID 32 km (20 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 54 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 83 km (51 mi) NNW of here earthquakes near Weber County
Bannock County, ID 86 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

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

  1. 2.5 6 km WSW of Corinne, Utah
  2. 2.2 5 km ENE of Howell, Utah
  3. 2.5 20 km WSW of Corinne, Utah
  4. 1.7 4 km ENE of Howell, Utah
  5. 1.6 4 km NE of Howell, Utah
  6. 1.9 17 km W of Corinne, Utah
  7. 1.5 5 km ENE of Howell, Utah
  8. 1.9 5 km NE of Howell, Utah
  9. 3.9 5 km ENE of Howell, Utah
  10. 1.8 10 km W of Snowville, Utah
  11. 2.2 10 km WNW of Howell, Utah
  12. 1.7 11 km S of Snowville, Utah
  13. 1.7 8 km W of Plymouth, Utah
  14. 2.6 9 km NE of Howell, Utah
  15. 2.0 10 km WSW of Portage, 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.