QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

12 km WSW of Georgetown, Idaho

· 11 km deep · released about 2,000 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bear Lake County 22 kmFranklin County 39 kmCaribou County 40 kmBannock County 66 kmLincoln County 71 kmCache County 80 kmOneida County 88 kmRich County 92 kmBonneville County 108 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 3.2 (ml)
Depth
11 km below the surface
Felt
2 reports · strongest reported intensity IV
Measured shaking
intensity III (ShakeMap)
Nearest
Bear Lake County, 22 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2861 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 2,000 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 170,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,700× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,400× the energy of this one
  4. This earthquake M 3.2 about 2,000 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2.1× more

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 42.4308, -111.5077. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bear Lake County, ID 22 km (14 mi) NW of here earthquakes near Bear Lake County
Franklin County, ID 39 km (24 mi) NE of here earthquakes near Franklin County
Caribou County, ID 40 km (25 mi) S of here earthquakes near Caribou County
Bannock County, ID 66 km (41 mi) ESE of here earthquakes near Bannock County
Lincoln County, WY 71 km (44 mi) WNW of here earthquakes near Lincoln County
Cache County, UT 80 km (50 mi) NNE of here earthquakes near Cache County

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

Aftershocks so far

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

  1. 1.6 15 km E of Soda Springs, Idaho
  2. 2.4 18 km SW of Fairview, Wyoming
  3. 2.1 12 km ESE of Soda Springs, Idaho
  4. 1.8 13 km NNW of Georgetown, Idaho
  5. 2.5 18 km W of Fairview, Wyoming
  6. 1.7 10 km NNW of Georgetown, Idaho
  7. 2.4 10 km ENE of Soda Springs, Idaho
  8. 2.4 11 km NNW of Georgetown, Idaho
  9. 1.5 10 km NNW of Georgetown, Idaho
  10. 1.8 13 km NNW of Georgetown, Idaho
  11. 3.2 13 km NW of Georgetown, Idaho
  12. 2.1 13 km ESE of Soda Springs, Idaho
  13. 1.6 9 km ENE of Soda Springs, Idaho
  14. 2.2 13 km NNW of Georgetown, Idaho
  15. 1.6 8 km NW of Georgetown, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.3 on 2017-09-02 — it released about 1,400 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.