QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

6 km NNE of Lofall, Washington

· 18 km deep · released about 6.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kitsap County 25 kmIsland County 33 kmSnohomish County 67 kmJefferson County 68 kmMason County 71 kmKing County 72 kmSan Juan County 80 kmSkagit County 91 kmPierce County 97 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
18 km below the surface
Felt
no reports yet
Nearest
Kitsap County, 25 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 568 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 6.6 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 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 47.8672, -122.6158. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kitsap County, WA 25 km (16 mi) N of here earthquakes near Kitsap County
Island County, WA 33 km (20 mi) S of here earthquakes near Island County
Snohomish County, WA 67 km (41 mi) WSW of here earthquakes near Snohomish County
Jefferson County, WA 68 km (42 mi) E of here earthquakes near Jefferson County
Mason County, WA 71 km (44 mi) NE of here earthquakes near Mason County
King County, WA 72 km (45 mi) NW of here earthquakes near King County

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

Aftershocks so far

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

  1. 1.6 1 km SW of Bothell East, Washington
  2. 1.9 6 km N of Brinnon, Washington
  3. 1.7 3 km WNW of Gorst, Washington
  4. 1.8 7 km ESE of Blyn, Washington
  5. 1.5 1 km WSW of Silverdale, Washington
  6. 1.8 4 km SSW of Port Ludlow, Washington
  7. 1.7 1 km NNW of Silvana, Washington
  8. 1.9 1 km ESE of Esperance, Washington
  9. 1.7 12 km NNW of Quilcene, Washington
  10. 2.2 1 km NNE of Cathcart, Washington
  11. 1.6 7 km WNW of Gorst, Washington
  12. 1.7 2 km S of River Road, Washington
  13. 1.8 5 km N of Lofall, Washington
  14. 1.9 8 km ENE of Port Townsend, Washington
  15. 1.5 3 km NNE of White Center, 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.