QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

1 km ENE of Enetai, Washington

· 27 km deep · released about 320 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kitsap County 7 kmMason County 52 kmKing County 57 kmIsland County 63 kmPierce County 68 kmJefferson County 75 kmThurston County 75 kmSnohomish County 80 kmGrays Harbor County 108 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 2.7 (ml)
Depth
27 km below the surface
Felt
40 reports · strongest reported intensity IV
Measured shaking
intensity II (ShakeMap)
Nearest
Kitsap County, 7 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 380 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 40 people have reported feeling it to USGS.

How big was it?

This earthquake released about 320 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 48,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 34,000× the energy of this one
  3. Around the size people start to feel M 3.0 3× the energy of this one
  4. This earthquake M 2.7 about 320 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 47.5918, -122.5832. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kitsap County, WA 7 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) WNW of here earthquakes near King County
Island County, WA 63 km (39 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

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

  1. 1.7 3 km NNE of Dash Point, Washington
  2. 1.9 3 km SE of Gorst, Washington
  3. 2.8 4 km N of Echo Lake, Washington
  4. 1.6 1 km NNW of Boulevard Park, Washington
  5. 1.8 9 km SSW of Seabeck, Washington
  6. 2.1 0 km NNW of Esperance, Washington
  7. 1.8 1 km NNW of Maple Valley, Washington
  8. 1.7 2 km NNE of Enetai, Washington
  9. 1.5 2 km SSE of Gorst, Washington
  10. 1.6 1 km SW of Burien, Washington
  11. 1.5 5 km S of Port Ludlow, Washington
  12. 2.1 4 km WSW of Clinton, Washington
  13. 1.5 4 km ESE of Indianola, Washington
  14. 1.8 2 km WSW of Federal Way, Washington
  15. 2.0 2 km E of Tracyton, 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 130 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.