QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

9 km ESE of Bancroft, Idaho

· 10 km deep · released about 1,900 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Caribou County 21 kmBannock County 37 kmFranklin County 59 kmBear Lake County 59 kmBingham County 76 kmBonneville County 78 kmOneida County 84 kmPower County 87 kmLincoln County 104 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
10 km below the surface
Felt
7 reports · strongest reported intensity IV
Nearest
Caribou County, 21 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1943 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 7 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,900 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 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× 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 42.7020, -111.7749. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Caribou County, ID 21 km (13 mi) WSW of here earthquakes near Caribou County
Bannock County, ID 37 km (23 mi) E of here earthquakes near Bannock County
Franklin County, ID 59 km (37 mi) N of here earthquakes near Franklin County
Bear Lake County, ID 59 km (37 mi) NW of here earthquakes near Bear Lake County
Bingham County, ID 76 km (48 mi) SE of here earthquakes near Bingham County
Bonneville County, ID 78 km (49 mi) S of here earthquakes near Bonneville 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. 2.2 5 km NW of Georgetown, Idaho
  2. 2.2 17 km NE of Georgetown, Idaho
  3. 2.0 8 km E of Soda Springs, Idaho
  4. 2.1 9 km E of Soda Springs, Idaho
  5. 1.5 14 km NNW of Georgetown, Idaho
  6. 1.7 15 km WSW of Bennington, Idaho
  7. 2.9 10 km ESE of Bancroft, Idaho
  8. 2.3 13 km ESE of Soda Springs, Idaho
  9. 2.2 southern Idaho
  10. 3.1 40 km N of Soda Springs, Idaho
  11. 1.8 7 km NW of Georgetown, Idaho
  12. 1.6 1 km SSE of Bancroft, Idaho
  13. 1.9 5 km E of Bancroft, Idaho
  14. 1.6 11 km ESE of Soda Springs, Idaho
  15. 1.5 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 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.