QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

0 km N of Lakeland South, Washington

· 21 km deep · released about 890 lb of TNT

10 km30 km60 km120 km N Pierce County 28 kmKing County 41 kmKitsap County 48 kmThurston County 57 kmMason County 68 kmLewis County 79 kmSnohomish County 94 kmIsland County 101 kmJefferson County 110 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
21 km below the surface
Felt
18 reports · strongest reported intensity IV
Nearest
Pierce County, 28 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 553 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 18 people have reported feeling it to USGS.

How big was it?

This earthquake released about 890 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 6.7 380,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 17,000× 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 890 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 47.2858, -122.2818. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pierce County, WA 28 km (17 mi) NNW of here earthquakes near Pierce County
King County, WA 41 km (25 mi) SW of here earthquakes near King County
Kitsap County, WA 48 km (30 mi) SE of here earthquakes near Kitsap County
Thurston County, WA 57 km (35 mi) NE of here earthquakes near Thurston County
Mason County, WA 68 km (42 mi) E of here earthquakes near Mason County
Lewis County, WA 79 km (49 mi) N of here earthquakes near Lewis County

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

Aftershocks so far

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

  1. 1.9 1 km SSW of Enetai, Washington
  2. 1.9 1 km SE of Enetai, Washington
  3. 2.0 1 km ESE of Enetai, Washington
  4. 1.6 2 km E of Enetai, Washington
  5. 2.3 2 km ESE of Enetai, Washington
  6. 1.6 1 km ESE of Enetai, Washington
  7. 1.5 1 km SE of Enetai, Washington
  8. 1.5 1 km E of Enetai, Washington
  9. 1.5 2 km E of Enetai, Washington
  10. 2.0 0 km SE of Enetai, Washington
  11. 1.5 0 km E of Enetai, Washington
  12. 3.3 1 km S of Enetai, Washington
  13. 1.8 3 km NNE of Klahanie, Washington
  14. 1.8 3 km NNE of East Renton Highlands, Washington
  15. 1.6 3 km SW of Seattle, 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.