QuakeIndex

Earthquake · reviewed by a seismologist

M 3.5ml

1 km ENE of Enetai, Washington

· 24 km deep · released about 2.4 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kitsap County 8 kmMason County 52 kmKing County 57 kmIsland County 64 kmPierce County 68 kmJefferson County 75 kmThurston County 75 kmSnohomish County 80 kmGrays Harbor County 107 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 3.5 (ml)
Depth
24 km below the surface
Felt
960 reports · strongest reported intensity IV
Measured shaking
intensity III (ShakeMap)
Nearest
Kitsap County, 8 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3101 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 960 people have reported feeling it to USGS.

How big was it?

This earthquake released about 2.4 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.5 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 70,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 3,100× the energy of this one
  3. Magna, Utah 2020 M 5.7 2,200× the energy of this one
  4. This earthquake M 3.5 about 2.4 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 5.1× 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 47.5887, -122.5842. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kitsap County, WA 8 km (5 mi) SE of here earthquakes near Kitsap County
Mason County, WA 52 km (32 mi) ENE of here earthquakes near Mason County
King County, WA 57 km (36 mi) W of here earthquakes near King County
Island County, WA 64 km (40 mi) S of here earthquakes near Island County
Pierce County, WA 68 km (42 mi) NNW of here earthquakes near Pierce County
Jefferson County, WA 75 km (46 mi) ESE of here earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 1.8 4 km WSW of Inglewood-Finn Hill, Washington
  2. 1.6 1 km NE of Yarrow Point, Washington
  3. 2.0 5 km WSW of Chico, Washington
  4. 1.8 8 km NE of Bainbridge Island, Washington
  5. 1.7 3 km SW of Port Ludlow, Washington
  6. 1.6 2 km SE of Maltby, Washington
  7. 1.8 4 km WNW of Wauna, Washington
  8. 2.5 2 km ESE of Enetai, Washington
  9. 2.0 1 km NNW of Maple Valley, Washington
  10. 1.6 1 km WNW of Maple Valley, Washington
  11. 1.8 3 km NE of Key Center, Washington
  12. 2.0 1 km NE of Enetai, Washington
  13. 1.9 2 km ENE of Enetai, Washington
  14. 1.5 6 km ENE of Hoodsport, Washington
  15. 2.1 3 km WSW of Chico, 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 8.5 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.