QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

1 km WNW of Franklin, Idaho

· -0.3 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Franklin County 17 kmCache County 33 kmBear Lake County 51 kmOneida County 60 kmRich County 66 kmBannock County 82 kmWeber County 84 kmCaribou County 88 kmLincoln 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 1.9 (ml)
Depth
-0.3 km below the surface
Felt
8 reports · strongest reported intensity IV
Nearest
Franklin County, 17 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1905 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 8 people have reported feeling it to USGS.

How big was it?

This earthquake released about 25 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 5.8 620,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 440,000× the energy of this one
  3. Around the size people start to feel M 3.0 39× the energy of this one
  4. This earthquake M 1.9 about 25 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 42.0222, -111.8275. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Franklin County, ID 17 km (10 mi) S of here earthquakes near Franklin County
Cache County, UT 33 km (20 mi) NNW of here earthquakes near Cache County
Bear Lake County, ID 51 km (31 mi) SW of here earthquakes near Bear Lake County
Oneida County, ID 60 km (37 mi) ESE of here earthquakes near Oneida County
Rich County, UT 66 km (41 mi) NW of here earthquakes near Rich County
Bannock County, ID 82 km (51 mi) SSE of here earthquakes near Bannock County

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

Aftershocks so far

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

  1. 2.5 2 km NNW of Benson, Utah
  2. 3.2 1 km NE of Benson, Utah
  3. 1.9 Utah
  4. 2.7 1 km NNE of Benson, Utah
  5. 1.8 1 km NNE of Benson, Utah
  6. 1.9 3 km NNW of Benson, Utah
  7. 2.8 2 km N of Benson, Utah
  8. 2.0 0 km ENE of Benson, Utah
  9. 2.6 2 km NW of Benson, Utah
  10. 2.5 2 km NNE of Benson, Utah
  11. 2.3 0 km NW of Benson, Utah
  12. 2.6 3 km SSE of Trenton, Utah
  13. 1.7 10 km SSW of Malad City, Idaho
  14. 1.7 11 km SSW of Malad City, Idaho
  15. 1.6 3 km NW of Amalga, 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.