QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

17 km SSE of Carbonado, Washington

· 12 km deep · released about 920 lb of TNT

10 km30 km60 km120 km N Pierce County 19 kmLewis County 51 kmKing County 62 kmThurston County 66 kmKitsap County 94 kmCowlitz County 99 kmKittitas County 100 kmSkamania County 101 kmMason County 102 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 3.0 (ml)
Depth
12 km below the surface
Felt
32 reports · strongest reported intensity IV
Nearest
Pierce County, 19 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2970 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 32 people have reported feeling it to USGS.

How big was it?

This earthquake released about 920 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 370,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 920 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 46.9370, -121.9645. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pierce County, WA 19 km (12 mi) SE of here earthquakes near Pierce County
Lewis County, WA 51 km (31 mi) NE of here earthquakes near Lewis County
King County, WA 62 km (39 mi) S of here earthquakes near King County
Thurston County, WA 66 km (41 mi) E of here earthquakes near Thurston County
Kitsap County, WA 94 km (58 mi) SSE of here earthquakes near Kitsap County
Cowlitz County, WA 99 km (61 mi) NNE of here earthquakes near Cowlitz County

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

Aftershocks so far

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

  1. 1.5 22 km ENE of Ashford, Washington
  2. 1.6 6 km SW of La Grande, Washington
  3. 1.5 2 km ESE of Kapowsin, Washington
  4. 1.9 13 km NNE of Mossyrock, Washington
  5. 1.8 2 km E of Kapowsin, Washington
  6. 1.7 9 km SE of Enumclaw, Washington
  7. 1.6 10 km ESE of Enumclaw, Washington
  8. 1.9 11 km ESE of Enumclaw, Washington
  9. 1.6 11 km W of Greenwater, Washington
  10. 1.6 15 km NE of Ashford, Washington
  11. 1.8 13 km ESE of Enumclaw, Washington
  12. 1.6 23 km ENE of Ashford, Washington
  13. 1.7 5 km ENE of Ashford, Washington
  14. 1.6 0 km N of Bonney Lake, Washington
  15. 1.7 11 km ESE of Enumclaw, Washington

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.