QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

2 km W of Clinton, Washington

· 18 km deep · released about 6.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Island County 29 kmKitsap County 42 kmSnohomish County 48 kmKing County 68 kmSkagit County 72 kmSan Juan County 79 kmJefferson County 87 kmMason County 91 kmPierce County 104 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 1.6 (ml)
Depth
18 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
Island County, 29 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 939 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 6.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 47.9742, -122.3932. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Island County, WA 29 km (18 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 48 km (30 mi) W of here earthquakes near Snohomish County
King County, WA 68 km (42 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 79 km (49 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. 1.6 2 km W of Kirkland, Washington
  2. 1.5 1 km ESE of Three Lakes, Washington
  3. 2.0 0 km WSW of Lynnwood, Washington
  4. 1.7 3 km N of Woods Creek, Washington
  5. 1.7 4 km E of Lake Bosworth, Washington
  6. 1.7 4 km WNW of Bainbridge Island, Washington
  7. 1.6 2 km N of Edmonds, Washington
  8. 1.6 2 km ENE of Granite Falls, Washington
  9. 2.0 1 km SE of Coupeville, Washington
  10. 1.9 3 km SSE of Woods Creek, Washington
  11. 1.6 4 km N of Woods Creek, Washington
  12. 1.6 6 km SSW of Port Ludlow, Washington
  13. 1.7 1 km ESE of Oso, Washington
  14. 1.7 1 km NE of White Center, Washington
  15. 1.8 1 km E of Enetai, 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 34,000 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.