QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

25 km WSW of Smiths Ferry, Idaho

· 6.3 km deep · released about 58 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Gem County 22 kmWashington County 38 kmPayette County 40 kmBoise County 62 kmAdams County 69 kmCanyon County 74 kmAda County 90 kmValley County 91 kmBaker County 114 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 2.2 (ml)
Depth
6.3 km below the surface
Felt
no reports yet
Nearest
Gem County, 22 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2265 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 44.2553, -116.4025. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Gem County, ID 22 km (13 mi) N of here earthquakes near Gem County
Washington County, ID 38 km (24 mi) SE of here earthquakes near Washington County
Payette County, ID 40 km (25 mi) NE of here earthquakes near Payette County
Boise County, ID 62 km (39 mi) WNW of here earthquakes near Boise County
Adams County, ID 69 km (43 mi) S of here earthquakes near Adams County
Canyon County, ID 74 km (46 mi) NNE of here earthquakes near Canyon 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. 2.1 5 km N of Smiths Ferry, Idaho
  2. 1.9 6 km S of Cascade, Idaho
  3. 1.6 8 km WNW of Smiths Ferry, Idaho
  4. 2.0 9 km NNE of Cascade, Idaho
  5. 1.7 8 km WNW of Smiths Ferry, Idaho
  6. 2.4 6 km W of Smiths Ferry, Idaho
  7. 1.8 6 km WNW of Smiths Ferry, Idaho
  8. 1.9 5 km WNW of Smiths Ferry, Idaho
  9. 1.9 5 km WNW of Smiths Ferry, Idaho
  10. 2.3 5 km WNW of Smiths Ferry, Idaho
  11. 2.4 10 km W of Smiths Ferry, Idaho
  12. 1.9 6 km WNW of Smiths Ferry, Idaho
  13. 2.4 6 km WNW of Smiths Ferry, Idaho
  14. 2.4 9 km WNW of Smiths Ferry, Idaho
  15. 2.6 7 km WNW of Smiths Ferry, 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.

On USGS

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