QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

3 km NNE of Picnic Point, Washington

· 14 km deep · released about 5.7 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Island County 38 kmKitsap County 39 kmSnohomish County 44 kmKing County 59 kmSkagit County 75 kmSan Juan County 88 kmMason County 89 kmJefferson County 91 kmPierce County 96 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
14 km below the surface
Felt
no reports yet
Nearest
Island County, 38 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 566 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 5.7 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 2,600,000× 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 5.7 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 47.9120, -122.3188. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Island County, WA 38 km (24 mi) SE of here earthquakes near Island County
Kitsap County, WA 39 km (24 mi) NE of here earthquakes near Kitsap County
Snohomish County, WA 44 km (27 mi) WSW of here earthquakes near Snohomish County
King County, WA 59 km (37 mi) NW of here earthquakes near King County
Skagit County, WA 75 km (46 mi) SSW of here earthquakes near Skagit County
San Juan County, WA 88 km (55 mi) SE of here earthquakes near San Juan County

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

Aftershocks so far

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

  1. 1.6 3 km N of Kingston, Washington
  2. 2.4 1 km SE of Manchester, Washington
  3. 1.8 8 km SSW of Sultan, Washington
  4. 2.3 3 km WNW of Duvall, Washington
  5. 1.8 2 km E of Granite Falls, Washington
  6. 1.6 Puget Sound region, Washington
  7. 1.5 4 km SSW of Clinton, Washington
  8. 1.6 2 km E of Granite Falls, Washington
  9. 1.7 4 km SW of White Center, Washington
  10. 1.8 3 km WSW of White Center, Washington
  11. 1.8 3 km NNW of Picnic Point, Washington
  12. 1.6 4 km NE of Granite Falls, Washington
  13. 1.9 1 km SSW of Erlands Point-Kitsap Lake, Washington
  14. 1.6 6 km SW of Sultan, Washington
  15. 1.6 Puget Sound region, 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 39,000 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.