QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

7 km ESE of Carnation, Washington

· 19 km deep · released about 5.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N King County 16 kmSnohomish County 47 kmKitsap County 62 kmPierce County 69 kmIsland County 86 kmChelan County 94 kmSkagit County 96 kmKittitas County 103 kmMason County 106 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 1.5 (ml)
Depth
19 km below the surface
Felt
no reports yet
Nearest
King County, 16 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2911 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 5.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.6 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 47.6307, -121.8238. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
King County, WA 16 km (10 mi) N of here earthquakes near King County
Snohomish County, WA 47 km (29 mi) S of here earthquakes near Snohomish County
Kitsap County, WA 62 km (38 mi) E of here earthquakes near Kitsap County
Pierce County, WA 69 km (43 mi) NNE of here earthquakes near Pierce County
Island County, WA 86 km (54 mi) SE of here earthquakes near Island County
Chelan County, WA 94 km (58 mi) WSW of here earthquakes near Chelan County

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

Aftershocks so far

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

  1. 1.9 3 km WSW of Wilderness Rim, Washington
  2. 1.6 3 km E of Cathcart, Washington
  3. 1.5 2 km N of Boulevard Park, Washington
  4. 1.5 2 km SSW of Lynnwood, Washington
  5. 1.6 4 km ESE of Carnation, Washington
  6. 1.6 3 km ENE of Cathcart, Washington
  7. 2.8 8 km NNE of Snoqualmie, Washington
  8. 1.8 1 km N of Fairwood, Washington
  9. 1.8 3 km E of Cathcart, Washington
  10. 1.6 4 km ENE of Cathcart, Washington
  11. 1.6 4 km SE of Ames Lake, 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.