QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

3 km N of Amalga, Utah

· 2.3 km deep · released about 18 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cache County 22 kmFranklin County 32 kmOneida County 60 kmRich County 63 kmBear Lake County 64 kmWeber County 70 kmBannock County 93 kmMorgan County 94 kmDavis 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 1.9 (ml)
Depth
2.3 km below the surface
Felt
no reports yet
Nearest
Cache County, 22 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1777 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 18 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 840,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 600,000× the energy of this one
  3. Around the size people start to feel M 3.0 53× the energy of this one
  4. This earthquake M 1.9 about 18 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 41.8962, -111.9042. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cache County, UT 22 km (14 mi) NW of here earthquakes near Cache County
Franklin County, ID 32 km (20 mi) SSW of here earthquakes near Franklin County
Oneida County, ID 60 km (37 mi) ESE of here earthquakes near Oneida County
Rich County, UT 63 km (39 mi) WNW of here earthquakes near Rich County
Bear Lake County, ID 64 km (40 mi) SW of here earthquakes near Bear Lake County
Weber County, UT 70 km (43 mi) N of here earthquakes near Weber County

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

Aftershocks so far

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

  1. 2.8 2 km N of Benson, Utah
  2. 2.0 0 km ENE of Benson, Utah
  3. 2.6 2 km NW of Benson, Utah
  4. 2.5 2 km NNE of Benson, Utah
  5. 2.3 0 km NW of Benson, Utah
  6. 2.6 3 km SSE of Trenton, Utah
  7. 1.7 7 km SW of Corinne, Utah
  8. 1.5 7 km SW of Corinne, 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. 2.1 10 km E of Providence, Utah
  15. 1.8 10 km E of Providence, 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.