QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

5 km SSE of May Creek, Washington

· 3.3 km deep · released about 130 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Snohomish County 29 kmKing County 38 kmKitsap County 77 kmSkagit County 77 kmChelan County 77 kmIsland County 85 kmPierce County 92 kmKittitas County 106 kmWhatcom County 116 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 2.4 (ml)
Depth
3.3 km below the surface
Felt
25 reports · strongest reported intensity III
Nearest
Snohomish County, 29 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2887 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 25 people have reported feeling it to USGS.

How big was it?

This earthquake released about 130 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 80,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.2× the energy of this one
  4. This earthquake M 2.4 about 130 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 47.8082, -121.6535. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Snohomish County, WA 29 km (18 mi) SSE of here earthquakes near Snohomish County
King County, WA 38 km (23 mi) NNE of here earthquakes near King County
Kitsap County, WA 77 km (48 mi) ENE of here earthquakes near Kitsap County
Skagit County, WA 77 km (48 mi) S of here earthquakes near Skagit County
Chelan County, WA 77 km (48 mi) W of here earthquakes near Chelan County
Island County, WA 85 km (53 mi) ESE of here earthquakes near Island County

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

Aftershocks so far

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

  1. 2.1 3 km ENE of Granite Falls, Washington
  2. 1.6 4 km ESE of Carnation, Washington
  3. 1.6 3 km ENE of Cathcart, Washington
  4. 1.7 2 km ENE of Granite Falls, Washington
  5. 2.8 8 km NNE of Snoqualmie, Washington
  6. 1.8 3 km E of Cathcart, Washington
  7. 1.6 4 km ENE of Cathcart, Washington
  8. 1.6 4 km SE of Ames Lake, Washington
  9. 1.6 4 km SSW of Roosevelt, Washington
  10. 3.0 4 km ENE of Cathcart, Washington
  11. 1.7 4 km ENE of Cathcart, Washington
  12. 2.4 4 km SSW of Roosevelt, Washington
  13. 1.9 4 km SSW of Roosevelt, Washington
  14. 2.5 3 km W of Monroe, Washington
  15. 1.6 3 km ENE 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.