QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

4 km SSW of Roosevelt, Washington

· 28 km deep · released about 27 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Snohomish County 30 kmKing County 44 kmKitsap County 51 kmIsland County 57 kmSkagit County 72 kmPierce County 90 kmMason County 102 kmChelan County 106 kmSan Juan County 107 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 2.0 (ml)
Depth
28 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Snohomish County, 30 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2790 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 27 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 560,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 390,000× the energy of this one
  3. Around the size people start to feel M 3.0 35× the energy of this one
  4. This earthquake M 2.0 about 27 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 47.8600, -122.0438. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Snohomish County, WA 30 km (19 mi) SW of here earthquakes near Snohomish County
King County, WA 44 km (27 mi) NNW of here earthquakes near King County
Kitsap County, WA 51 km (32 mi) ENE of here earthquakes near Kitsap County
Island County, WA 57 km (36 mi) SE of here earthquakes near Island County
Skagit County, WA 72 km (45 mi) SSW of here earthquakes near Skagit County
Pierce County, WA 90 km (56 mi) N of here earthquakes near Pierce County

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

Aftershocks so far

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

  1. 1.6 3 km E of Cathcart, Washington
  2. 1.5 3 km ENE of Enetai, Washington
  3. 2.1 3 km ENE of Granite Falls, Washington
  4. 1.5 2 km N of Boulevard Park, Washington
  5. 1.5 2 km SSW of Lynnwood, Washington
  6. 1.6 4 km ESE of Carnation, Washington
  7. 1.6 3 km ENE of Cathcart, Washington
  8. 1.7 2 km ENE of Granite Falls, Washington
  9. 2.8 8 km NNE of Snoqualmie, Washington
  10. 1.8 9 km NNW of Freeland, Washington
  11. 1.8 1 km N of Fairwood, Washington
  12. 1.8 3 km E of Cathcart, Washington
  13. 1.6 4 km ENE of Cathcart, Washington
  14. 1.6 4 km SE of Ames Lake, Washington
  15. 1.6 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.