QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

1 km SSW of Clinton, Washington

· 29 km deep · released about 98 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Island County 31 kmKitsap County 42 kmSnohomish County 46 kmKing County 66 kmSkagit County 72 kmSan Juan County 81 kmJefferson County 88 kmMason County 91 kmPierce County 103 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 2.3 (ml)
Depth
29 km below the surface
Felt
12 reports · strongest reported intensity III
Nearest
Island County, 31 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2619 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 12 people have reported feeling it to USGS.

How big was it?

This earthquake released about 98 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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 47.9638, -122.3698. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Island County, WA 31 km (19 mi) SE of here earthquakes near Island County
Kitsap County, WA 42 km (26 mi) NNE of here earthquakes near Kitsap County
Snohomish County, WA 46 km (29 mi) WSW of here earthquakes near Snohomish County
King County, WA 66 km (41 mi) NW of here earthquakes near King County
Skagit County, WA 72 km (45 mi) SW of here earthquakes near Skagit County
San Juan County, WA 81 km (50 mi) SE 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. 1.8 3 km SSW of Big Lake, Washington
  2. 1.5 3 km ENE of Enetai, Washington
  3. 1.6 1 km SW of Keyport, Washington
  4. 2.1 3 km ENE of Granite Falls, Washington
  5. 1.5 2 km SSW of Lynnwood, Washington
  6. 1.6 3 km ENE of Cathcart, Washington
  7. 1.7 2 km ENE of Granite Falls, Washington
  8. 1.8 9 km NNW of Freeland, Washington
  9. 1.8 3 km E of Cathcart, Washington
  10. 1.6 4 km ENE of Cathcart, Washington
  11. 2.0 1 km ENE of Enetai, Washington
  12. 1.6 4 km SSW of Roosevelt, Washington
  13. 3.0 4 km ENE of Cathcart, Washington
  14. 1.7 4 km ENE of Cathcart, Washington
  15. 2.4 4 km SSW of Roosevelt, 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.