QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

1 km S of Enetai, Washington

· 27 km deep · released about 1.4 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kitsap County 9 kmMason County 49 kmKing County 58 kmIsland County 66 kmPierce County 67 kmThurston County 73 kmJefferson County 74 kmSnohomish County 82 kmGrays Harbor County 105 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 3.3 (ml)
Depth
27 km below the surface
Felt
230 reports · strongest reported intensity III
Measured shaking
intensity III (ShakeMap)
Nearest
Kitsap County, 9 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2644 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 230 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.4 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 120,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,400× the energy of this one
  3. Magna, Utah 2020 M 5.7 3,800× the energy of this one
  4. This earthquake M 3.3 about 1.4 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.9× more

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 47.5693, -122.5995. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kitsap County, WA 9 km (5 mi) SSE of here earthquakes near Kitsap County
Mason County, WA 49 km (31 mi) ENE of here earthquakes near Mason County
King County, WA 58 km (36 mi) W of here earthquakes near King County
Island County, WA 66 km (41 mi) S of here earthquakes near Island County
Pierce County, WA 67 km (41 mi) NNW of here earthquakes near Pierce County
Thurston County, WA 73 km (45 mi) NNE of here earthquakes near Thurston 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. 2.0 7 km NE of Brinnon, Washington
  2. 1.6 0 km NNE of Mercer Island, Washington
  3. 1.8 1 km SSE of Mercer Island, Washington
  4. 1.7 10 km NNW of Belfair, Washington
  5. 3.7 2 km NNW of Quilcene, Washington
  6. 1.6 5 km N of Seattle, Washington
  7. 1.7 5 km SSE of Suquamish, Washington
  8. 1.9 2 km ENE of Enetai, Washington
  9. 2.0 0 km NNE of Enetai, Washington
  10. 1.8 3 km SE of Cathcart, Washington
  11. 1.6 0 km SW of Enetai, Washington
  12. 1.8 0 km WNW of Enetai, Washington
  13. 1.6 5 km S of Port Ludlow, Washington
  14. 1.8 1 km SE of Enetai, Washington
  15. 2.8 1 km ESE of Enetai, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.1 on 2017-02-23 — it released about 15 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.