QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

4 km ESE of Camano, Washington

· 20 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Island County 15 kmSnohomish County 53 kmKitsap County 59 kmSkagit County 61 kmSan Juan County 61 kmJefferson County 88 kmKing County 88 kmWhatcom County 89 kmMason 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 1.9 (ml)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Island County, 15 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2886 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 25 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 5.8 600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 420,000× the energy of this one
  3. Around the size people start to feel M 3.0 38× the energy of this one
  4. This earthquake M 1.9 about 25 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 48.1597, -122.4675. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Island County, WA 15 km (9 mi) E of here earthquakes near Island County
Snohomish County, WA 53 km (33 mi) WNW of here earthquakes near Snohomish County
Kitsap County, WA 59 km (37 mi) NNE of here earthquakes near Kitsap County
Skagit County, WA 61 km (38 mi) SW of here earthquakes near Skagit County
San Juan County, WA 61 km (38 mi) SE of here earthquakes near San Juan County
Jefferson County, WA 88 km (55 mi) ENE of here earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 1.6 3 km ENE of Cathcart, Washington
  2. 2.3 4 km SSW of Roosevelt, Washington
  3. 1.6 4 km E of Cathcart, Washington
  4. 2.0 4 km E of Cathcart, Washington
  5. 1.8 3 km SSW of Roosevelt, Washington
  6. 1.7 3 km SSW of Roosevelt, Washington
  7. 1.8 4 km SSW of Roosevelt, Washington
  8. 3.5 3 km SSW of Roosevelt, Washington
  9. 4.6 2 km S of Roosevelt, Washington
  10. 2.0 3 km ENE of Granite Falls, Washington
  11. 1.7 3 km SSW of Big Lake, Washington
  12. 1.6 5 km NNE of Kingston, Washington
  13. 1.5 4 km E of Riverside, Washington
  14. 1.9 3 km E of Granite Falls, Washington
  15. 1.8 4 km NE of Anacortes, 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.