QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

3 km SSW of Clinton, Washington

· 26 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Island County 31 kmKitsap County 40 kmSnohomish County 47 kmKing County 66 kmSkagit County 73 kmSan Juan County 82 kmJefferson County 87 kmMason County 90 kmPierce County 102 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
26 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Island County, 31 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2396 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 74 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 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 47.9548, -122.3788. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Island County, WA 31 km (19 mi) SE of here earthquakes near Island County
Kitsap County, WA 40 km (25 mi) NNE of here earthquakes near Kitsap County
Snohomish County, WA 47 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 73 km (45 mi) SW of here earthquakes near Skagit County
San Juan County, WA 82 km (51 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

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

  1. 2.0 2 km W of Union Hill-Novelty Hill, Washington
  2. 1.9 3 km N of White Center, Washington
  3. 1.8 2 km WSW of Shoreline, Washington
  4. 1.6 Puget Sound region, Washington
  5. 2.5 3 km W of Monroe, Washington
  6. 1.7 3 km SSW of Roosevelt, Washington
  7. 2.4 5 km E of Quilcene, Washington
  8. 1.7 4 km E of Granite Falls, Washington
  9. 1.5 Washington
  10. 1.7 2 km NNW of Indianola, Washington
  11. 1.8 2 km S of Keyport, Washington
  12. 1.6 5 km WSW of Coupeville, Washington
  13. 1.7 0 km ESE of Enetai, Washington
  14. 2.5 3 km SW of Woodway, Washington
  15. 1.6 0 km ESE of Granite Falls, 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 4.6 on 2019-07-12 — it released about 3,000 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.