QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

4 km ENE of Camano, Washington

· 25 km deep · released about 100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Island County 15 kmSnohomish County 55 kmSan Juan County 58 kmSkagit County 59 kmKitsap County 62 kmWhatcom County 87 kmJefferson County 89 kmKing County 91 kmClallam County 105 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
25 km below the surface
Felt
25 reports · strongest reported intensity III
Nearest
Island County, 15 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1046 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 100 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 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.4× the energy of this one
  4. This earthquake M 2.4 about 100 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 48.1883, -122.4753. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Island County, WA 15 km (9 mi) ENE of here earthquakes near Island County
Snohomish County, WA 55 km (34 mi) WNW of here earthquakes near Snohomish County
San Juan County, WA 58 km (36 mi) SE of here earthquakes near San Juan County
Skagit County, WA 59 km (37 mi) SW of here earthquakes near Skagit County
Kitsap County, WA 62 km (39 mi) NNE of here earthquakes near Kitsap County
Whatcom County, WA 87 km (54 mi) SSW of here earthquakes near Whatcom County

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

Aftershocks so far

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

  1. 1.9 4 km SW of Port Ludlow, Washington
  2. 1.8 4 km NNW of Bryant, Washington
  3. 1.6 Puget Sound region, Washington
  4. 1.5 Washington
  5. 1.7 5 km SW of Port Ludlow, Washington
  6. 1.6 2 km NE of Esperance, Washington
  7. 1.9 1 km ENE of Granite Falls, Washington
  8. 2.0 13 km W of Ault Field, Washington
  9. 1.5 5 km SW of Port Ludlow, Washington
  10. 1.9 2 km SSW of Esperance, Washington
  11. 1.9 4 km ENE of La Conner, Washington
  12. 1.7 1 km ENE of Granite Falls, Washington
  13. 1.5 4 km SW of Port Ludlow, Washington
  14. 1.6 4 km ESE of Quilcene, Washington
  15. 2.3 16 km SSE of Friday Harbor, 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 2,200 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.