QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

18 km WSW of Quilcene, Washington

· 44 km deep · released about 270 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jefferson County 31 kmKitsap County 38 kmMason County 49 kmIsland County 53 kmClallam County 68 kmSan Juan County 80 kmGrays Harbor County 92 kmThurston County 97 kmKing County 101 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 2.6 (ml)
Depth
44 km below the surface
Felt
no reports yet
Nearest
Jefferson County, 31 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1844 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 270 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 57,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 40,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.6× the energy of this one
  4. This earthquake M 2.6 about 270 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 47.7895, -123.1133. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jefferson County, WA 31 km (19 mi) E of here earthquakes near Jefferson County
Kitsap County, WA 38 km (24 mi) WNW of here earthquakes near Kitsap County
Mason County, WA 49 km (30 mi) N of here earthquakes near Mason County
Island County, WA 53 km (33 mi) SW of here earthquakes near Island County
Clallam County, WA 68 km (42 mi) ESE of here earthquakes near Clallam County
San Juan County, WA 80 km (50 mi) S of here earthquakes near San Juan County

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

Aftershocks so far

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

  1. 1.9 1 km SSW of Erlands Point-Kitsap Lake, Washington
  2. 1.5 7 km WNW of Lofall, Washington
  3. 1.9 7 km SSW of Port Ludlow, Washington
  4. 1.7 27 km NW of Hoodsport, Washington
  5. 1.9 7 km WNW of Lofall, Washington
  6. 1.5 8 km WNW of Lofall, Washington
  7. 3.7 7 km WNW of Lofall, Washington
  8. 1.5 5 km W of Gorst, Washington
  9. 1.5 3 km W of Hoodsport, Washington
  10. 1.7 6 km E of Quilcene, Washington
  11. 2.6 24 km SSW of River Road, Washington
  12. 1.6 5 km SW of Port Ludlow, Washington
  13. 1.5 8 km ESE of Blyn, Washington
  14. 1.5 6 km WSW of Erlands Point-Kitsap Lake, Washington
  15. 1.8 3 km W of Hansville, 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 150 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.