QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

1 km NE of Yarrow Point, Washington

· 24 km deep · released about 7.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N King County 33 kmKitsap County 34 kmSnohomish County 55 kmIsland County 66 kmPierce County 68 kmMason County 81 kmThurston County 93 kmSkagit County 97 kmJefferson County 100 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 1.6 (ml)
Depth
24 km below the surface
Felt
no reports yet
Nearest
King County, 33 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3299 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 7.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 47.6577, -122.2017. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
King County, WA 33 km (21 mi) NW of here earthquakes near King County
Kitsap County, WA 34 km (21 mi) E of here earthquakes near Kitsap County
Snohomish County, WA 55 km (34 mi) SW of here earthquakes near Snohomish County
Island County, WA 66 km (41 mi) SSE of here earthquakes near Island County
Pierce County, WA 68 km (42 mi) N of here earthquakes near Pierce County
Mason County, WA 81 km (50 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

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

  1. 1.7 6 km W of Burley, Washington
  2. 1.6 2 km S of West Lake Sammamish, Washington
  3. 2.7 4 km WSW of Mercer Island, Washington
  4. 2.3 6 km W of Burley, Washington
  5. 1.8 1 km SSW of Esperance, Washington
  6. 1.9 5 km S of Port Ludlow, Washington
  7. 2.3 2 km WNW of Redmond, Washington
  8. 1.7 2 km N of Mercer Island, Washington
  9. 1.6 1 km NE of Maple Valley, Washington
  10. 1.6 1 km WNW of Maple Valley, Washington
  11. 2.5 0 km S of Esperance, Washington
  12. 1.9 7 km SSW of Clinton, Washington
  13. 1.6 1 km S of Lake Marcel-Stillwater, Washington
  14. 1.5 4 km SSE of Vashon, Washington
  15. 1.7 3 km SSW of Erlands Point-Kitsap Lake, 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.