QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

5 km SSW of Blanchard, Idaho

· 7.1 km deep · released about 98 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kootenai County 40 kmSpokane County 48 kmBonner County 49 kmPend Oreille County 66 kmStevens County 78 kmBenewah County 88 kmBoundary County 97 kmShoshone County 109 kmLincoln County 113 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 2.3 (ml)
Depth
7.1 km below the surface
Felt
no reports yet
Nearest
Kootenai County, 40 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 552 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 98 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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 47.9680, -117.0135. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kootenai County, ID 40 km (25 mi) NW of here earthquakes near Kootenai County
Spokane County, WA 48 km (30 mi) NE of here earthquakes near Spokane County
Bonner County, ID 49 km (30 mi) SW of here earthquakes near Bonner County
Pend Oreille County, WA 66 km (41 mi) SSE of here earthquakes near Pend Oreille County
Stevens County, WA 78 km (48 mi) SE of here earthquakes near Stevens County
Benewah County, ID 88 km (55 mi) NNW of here earthquakes near Benewah County

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

Aftershocks so far

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

  1. 2.3 2 km NNE of Fairwood, Washington
  2. 2.1 8 km WNW of Dover, Idaho
  3. 1.8 20 km NE of Deer Park, Washington
  4. 2.1 12 km N of Priest River, Idaho
  5. 1.7 14 km SSW of Dover, Idaho
  6. 1.6 4 km N of Rockford Bay, Idaho
  7. 2.1 4 km NNE of Fairwood, Washington
  8. 1.9 1 km NE of Sandpoint, Idaho
  9. 1.8 9 km WNW of Ponderay, Idaho
  10. 1.8 7 km WSW of Newport, Washington
  11. 1.7 5 km NNW of Priest River, Idaho
  12. 1.6 7 km WNW of Rockford Bay, Idaho
  13. 2.0 3 km N of Dover, Idaho
  14. 1.9 2 km NE of Fairwood, Washington
  15. 2.2 10 km NW of Dover, 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.