QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

4 km NNW of Donnelly, Idaho

· 8.8 km deep · released about 5.7 lb of TNT

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10 km30 km60 km120 km N Adams County 30 kmValley County 40 kmWashington County 65 kmGem County 82 kmBoise County 92 kmPayette County 99 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 1.5 (ml)
Depth
8.8 km below the surface
Felt
no reports yet
Nearest
Adams County, 30 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2405 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 5.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.7 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 44.7675, -116.1123. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Adams County, ID 30 km (19 mi) ESE of here earthquakes near Adams County
Valley County, ID 40 km (25 mi) WSW of here earthquakes near Valley County
Washington County, ID 65 km (40 mi) ENE of here earthquakes near Washington County
Gem County, ID 82 km (51 mi) NNE of here earthquakes near Gem County
Boise County, ID 92 km (57 mi) NNW of here earthquakes near Boise County
Payette County, ID 99 km (62 mi) NNE of here earthquakes near Payette County

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

Aftershocks so far

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

  1. 2.3 16 km ESE of McCall, Idaho
  2. 2.6 7 km WNW of Smiths Ferry, Idaho
  3. 2.2 25 km WNW of Smiths Ferry, Idaho
  4. 1.8 13 km SSW of Donnelly, Idaho
  5. 2.0 5 km WNW of Cascade, Idaho
  6. 2.1 6 km NNE of Smiths Ferry, Idaho
  7. 2.2 6 km N of Smiths Ferry, Idaho
  8. 3.1 6 km NNW of Smiths Ferry, Idaho
  9. 2.0 6 km WNW of Smiths Ferry, Idaho
  10. 2.1 2 km N of Smiths Ferry, Idaho
  11. 2.1 4 km NNW of Cascade, Idaho
  12. 1.7 14 km NW of Cascade, Idaho
  13. 1.9 7 km WNW of Smiths Ferry, Idaho
  14. 1.7 6 km WNW of Smiths Ferry, Idaho
  15. 1.9 3 km NNW 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

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