QuakeIndex

Earthquake · reviewed by a seismologist

M 3.4ml

16 km ENE of Georgetown, Idaho

· 5.0 km deep · released about 1.9 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bear Lake County 30 kmCaribou County 41 kmLincoln County 53 kmFranklin County 66 kmBannock County 88 kmCache County 101 kmRich County 101 kmBonneville County 102 kmSublette County 106 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 3.4 (ml)
Depth
5.0 km below the surface
Felt
23 reports · strongest reported intensity IV
Nearest
Bear Lake County, 30 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1736 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 23 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.9 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 89,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 2,800× the energy of this one
  4. This earthquake M 3.4 about 1.9 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 4× 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 42.5358, -111.1792. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bear Lake County, ID 30 km (19 mi) NNE of here earthquakes near Bear Lake County
Caribou County, ID 41 km (25 mi) SE of here earthquakes near Caribou County
Lincoln County, WY 53 km (33 mi) NW of here earthquakes near Lincoln County
Franklin County, ID 66 km (41 mi) NE of here earthquakes near Franklin County
Bannock County, ID 88 km (54 mi) E of here earthquakes near Bannock County
Cache County, UT 101 km (63 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 18 km NNW of Taylor, Wyoming
  2. 1.6 17 km NNW of Taylor, Wyoming
  3. 2.0 16 km NNW of Taylor, Wyoming
  4. 1.9 18 km NNW of Taylor, Wyoming
  5. 1.6 18 km NNW of Taylor, Wyoming
  6. 1.9 17 km NNW of Taylor, Wyoming
  7. 3.0 18 km NNW of Taylor, Wyoming
  8. 2.6 18 km NNW of Taylor, Wyoming
  9. 1.8 18 km NNW of Taylor, Wyoming
  10. 3.6 17 km NNW of Taylor, Wyoming
  11. 1.7 southern Idaho
  12. 3.0 17 km NNW of Taylor, Wyoming
  13. 2.3 18 km NNW of Taylor, Wyoming
  14. 2.8 18 km NNW of Taylor, Wyoming
  15. 2.2 southern 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 710 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.