QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

20 km WSW of Brinnon, Washington

· 45 km deep · released about 220 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mason County 32 kmJefferson County 33 kmKitsap County 38 kmIsland County 68 kmClallam County 75 kmGrays Harbor County 77 kmThurston County 82 kmSan Juan County 96 kmPierce County 100 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
45 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Mason County, 32 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3555 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 220 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 68,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 48,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.3× the energy of this one
  4. This earthquake M 2.6 about 220 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 47.6408, -123.1620. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mason County, WA 32 km (20 mi) N of here earthquakes near Mason County
Jefferson County, WA 33 km (20 mi) ESE of here earthquakes near Jefferson County
Kitsap County, WA 38 km (24 mi) W of here earthquakes near Kitsap County
Island County, WA 68 km (42 mi) SSW of here earthquakes near Island County
Clallam County, WA 75 km (47 mi) SE of here earthquakes near Clallam County
Grays Harbor County, WA 77 km (48 mi) NE of here earthquakes near Grays Harbor 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. 1.9 6 km WSW of Chico, Washington
  2. 1.5 10 km N of Quilcene, Washington
  3. 1.6 17 km NW of Hoodsport, Washington
  4. 1.5 7 km ENE of Allyn, Washington
  5. 1.6 1 km W of Enetai, Washington
  6. 1.7 6 km W of Burley, Washington
  7. 2.3 6 km W of Burley, Washington
  8. 1.9 5 km S of Port Ludlow, Washington
  9. 1.7 3 km SSW of Erlands Point-Kitsap Lake, Washington
  10. 1.6 2 km WNW of Navy Yard City, Washington
  11. 1.6 2 km WNW of Navy Yard City, Washington
  12. 2.7 5 km W of Gorst, Washington
  13. 1.6 3 km NW of Burley, Washington
  14. 1.6 19 km WSW of Brinnon, Washington
  15. 1.5 3 km SSE of Quilcene, 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.