QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

1 km W of Seattle, Washington

· 22 km deep · released about 6.2 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kitsap County 22 kmKing County 41 kmPierce County 64 kmIsland County 66 kmSnohomish County 66 kmMason County 68 kmThurston County 83 kmJefferson County 90 kmSkagit County 106 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
22 km below the surface
Felt
no reports yet
Nearest
Kitsap County, 22 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3415 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 6.2 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 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.5 about 6.2 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 47.6090, -122.3537. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kitsap County, WA 22 km (14 mi) E of here earthquakes near Kitsap County
King County, WA 41 km (26 mi) WNW of here earthquakes near King County
Pierce County, WA 64 km (40 mi) NNW of here earthquakes near Pierce County
Island County, WA 66 km (41 mi) SSE of here earthquakes near Island County
Snohomish County, WA 66 km (41 mi) SW of here earthquakes near Snohomish County
Mason County, WA 68 km (42 mi) ENE of here earthquakes near Mason County

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

Aftershocks so far

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

  1. 1.6 2 km SW of Suquamish, Washington
  2. 2.0 Puget Sound region, Washington
  3. 1.8 6 km SSW of Port Ludlow, Washington
  4. 1.6 3 km WNW of Vashon, Washington
  5. 1.6 0 km SSW of Beaux Arts Village, Washington
  6. 1.9 5 km WNW of Lofall, Washington
  7. 1.5 1 km NE of Enetai, Washington
  8. 1.8 4 km WSW of Inglewood-Finn Hill, Washington
  9. 1.5 2 km ENE of Union Hill-Novelty Hill, Washington
  10. 1.6 1 km NE of Yarrow Point, Washington
  11. 2.0 5 km WSW of Chico, Washington
  12. 1.8 8 km NE of Bainbridge Island, Washington
  13. 1.7 3 km SW of Port Ludlow, Washington
  14. 1.6 2 km SE of Maltby, Washington
  15. 1.8 4 km WNW of Wauna, 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.