QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

18 km ENE of Georgetown, Idaho

· 4.0 km deep · released about 1.3 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bear Lake County 29 kmCaribou County 44 kmLincoln County 50 kmFranklin County 67 kmBannock County 90 kmRich County 99 kmCache County 100 kmBonneville County 105 kmSublette County 105 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 3.3 (ml)
Depth
4.0 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Bear Lake County, 29 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2488 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 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,000× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.8× 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 42.5174, -111.1548. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bear Lake County, ID 29 km (18 mi) NNE of here earthquakes near Bear Lake County
Caribou County, ID 44 km (27 mi) SE of here earthquakes near Caribou County
Lincoln County, WY 50 km (31 mi) NW of here earthquakes near Lincoln County
Franklin County, ID 67 km (42 mi) NE of here earthquakes near Franklin County
Bannock County, ID 90 km (56 mi) ESE of here earthquakes near Bannock County
Rich County, UT 99 km (62 mi) N of here earthquakes near Rich 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. 1.9 2 km W of Bennington, Idaho
  2. 1.9 3 km SE of Bennington, Idaho
  3. 2.6 1 km WSW of Bennington, Idaho
  4. 1.5 2 km SW of Bennington, Idaho
  5. 1.6 2 km WSW of Bennington, Idaho
  6. 2.4 1 km WSW of Bennington, Idaho
  7. 2.0 19 km SW of Fairview, Wyoming
  8. 1.8 7 km E of Soda Springs, Idaho
  9. 3.1 21 km WNW of Auburn, Wyoming
  10. 1.7 11 km E of Soda Springs, Idaho
  11. 1.8 13 km ESE of Soda Springs, Idaho
  12. 1.9 10 km ESE of Soda Springs, Idaho
  13. 2.6 16 km ENE of Soda Springs, Idaho
  14. 1.5 10 km ENE of Soda Springs, Idaho
  15. 1.6 12 km ESE of Soda Springs, 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 1,000 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.