QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

17 km E of Carnation, Washington

· 8.4 km deep · released about 180 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N King County 22 kmSnohomish County 44 kmKitsap County 72 kmPierce County 77 kmChelan County 83 kmIsland County 92 kmSkagit County 93 kmKittitas County 97 kmMason County 117 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 2.5 (ml)
Depth
8.4 km below the surface
Felt
76 reports · strongest reported intensity III
Measured shaking
intensity III (ShakeMap)
Nearest
King County, 22 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1908 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 76 people have reported feeling it to USGS.

How big was it?

This earthquake released about 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 86,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 61,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.4× the energy of this one
  4. This earthquake M 2.5 about 180 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 47.6635, -121.6842. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
King County, WA 22 km (14 mi) NNE of here earthquakes near King County
Snohomish County, WA 44 km (27 mi) S of here earthquakes near Snohomish County
Kitsap County, WA 72 km (45 mi) E of here earthquakes near Kitsap County
Pierce County, WA 77 km (48 mi) NNE of here earthquakes near Pierce County
Chelan County, WA 83 km (51 mi) WSW of here earthquakes near Chelan County
Island County, WA 92 km (57 mi) SE of here earthquakes near Island County

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

Aftershocks so far

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

  1. 1.5 Washington
  2. 2.0 Washington
  3. 3.1 6 km SSE of Black Diamond, Washington
  4. 1.7 4 km E of Granite Falls, Washington
  5. 1.9 2 km E of Union Hill-Novelty Hill, Washington
  6. 1.8 1 km W of Redmond, Washington
  7. 1.6 11 km SSW of Gold Bar, Washington
  8. 2.4 7 km ENE of Fall City, Washington
  9. 2.0 7 km NE of Fall City, Washington
  10. 2.0 3 km SE of Issaquah, Washington
  11. 1.6 1 km SW of Bothell East, Washington
  12. 1.8 1 km SW of Monroe North, Washington
  13. 1.9 Washington
  14. 1.5 5 km NNE of Duvall, Washington
  15. 2.2 1 km NNE of Cathcart, 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 1,300 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.