QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

4 km NW of Dash Point, Washington

· 20 km deep · released about 9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kitsap County 35 kmPierce County 41 kmKing County 50 kmMason County 53 kmThurston County 54 kmLewis County 86 kmIsland County 91 kmJefferson County 94 kmSnohomish County 94 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 1.7 (ml)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Kitsap County, 35 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 168 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 9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.7 about 9 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 47.3510, -122.4707. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kitsap County, WA 35 km (22 mi) SSE of here earthquakes near Kitsap County
Pierce County, WA 41 km (26 mi) NW of here earthquakes near Pierce County
King County, WA 50 km (31 mi) WSW of here earthquakes near King County
Mason County, WA 53 km (33 mi) E of here earthquakes near Mason County
Thurston County, WA 54 km (33 mi) NNE of here earthquakes near Thurston County
Lewis County, WA 86 km (53 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

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

  1. 1.1 3 km NNW of Dash Point, Washington
  2. 2.1 3 km NNW of Kapowsin, Washington
  3. 0.4 11 km NE of Hoodsport, Washington
  4. 2.0 3 km ESE of East Renton Highlands, Washington
  5. 0.5 2 km S of Union Hill-Novelty Hill, Washington
  6. 1.8 3 km SW of Kapowsin, Washington
  7. 1.6 1 km NNE of Maple Valley, Washington
  8. 1.5 2 km WNW of Ames Lake, Washington
  9. 1.7 2 km NNW of Enetai, Washington
  10. 1.9 6 km SSE of Lea Hill, Washington
  11. 1.5 5 km WSW of Mercer Island, Washington
  12. 1.7 1 km SW of Kapowsin, Washington
  13. 1.6 3 km ESE of Buckley, Washington
  14. 2.2 2 km WSW of Wauna, Washington
  15. 1.5 5 km ENE of Belfair, 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.