QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

17 km WNW of Portage, Utah

· 12 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Oneida County 20 kmFranklin County 54 kmCache County 65 kmBox Elder County 67 kmBannock County 78 kmPower County 83 kmWeber County 95 kmBear Lake County 97 kmCassia County 102 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
12 km below the surface
Felt
no reports yet
Nearest
Oneida County, 20 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1944 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 10 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 1,500,000× 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 95× the energy of this one
  4. This earthquake M 1.7 about 10 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 42.0123, -112.4393. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Oneida County, ID 20 km (13 mi) SSE of here earthquakes near Oneida County
Franklin County, ID 54 km (34 mi) WSW of here earthquakes near Franklin County
Cache County, UT 65 km (41 mi) WNW of here earthquakes near Cache County
Box Elder County, UT 67 km (42 mi) NE of here earthquakes near Box Elder County
Bannock County, ID 78 km (48 mi) SSW of here earthquakes near Bannock County
Power County, ID 83 km (51 mi) SSE of here earthquakes near Power County

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

Aftershocks so far

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

  1. 1.8 1 km NNE of Benson, Utah
  2. 1.9 3 km NNW of Benson, Utah
  3. 2.8 2 km N of Benson, Utah
  4. 2.0 0 km ENE of Benson, Utah
  5. 2.6 2 km NW of Benson, Utah
  6. 2.5 2 km NNE of Benson, Utah
  7. 2.3 0 km NW of Benson, Utah
  8. 2.6 3 km SSE of Trenton, Utah
  9. 1.7 10 km SSW of Malad City, Idaho
  10. 1.7 11 km SSW of Malad City, Idaho
  11. 1.6 3 km NW of Amalga, Utah
  12. 1.5 9 km SSW of Malad City, Idaho
  13. 1.8 11 km SSW of Malad City, Idaho
  14. 2.4 17 km ENE of Snowville, Utah
  15. 1.6 11 km SSW of Malad City, Idaho

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.