QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

2 km SE of Maltby, Washington

· 26 km deep · released about 7.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N King County 38 kmSnohomish County 38 kmKitsap County 45 kmIsland County 60 kmSkagit County 81 kmPierce County 82 kmMason County 95 kmJefferson County 108 kmThurston County 110 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 1.6 (ml)
Depth
26 km below the surface
Felt
no reports yet
Nearest
King County, 38 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3328 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 7.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.1 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 47.7847, -122.0875. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
King County, WA 38 km (24 mi) NNW of here earthquakes near King County
Snohomish County, WA 38 km (24 mi) SW of here earthquakes near Snohomish County
Kitsap County, WA 45 km (28 mi) ENE of here earthquakes near Kitsap County
Island County, WA 60 km (37 mi) SE of here earthquakes near Island County
Skagit County, WA 81 km (51 mi) SSW of here earthquakes near Skagit County
Pierce County, WA 82 km (51 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

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

  1. 1.7 3 km W of Redmond, Washington
  2. 1.9 3 km ENE of Granite Falls, Washington
  3. 1.6 3 km W of Redmond, Washington
  4. 1.7 3 km SE of Duvall, Washington
  5. 1.6 2 km S of West Lake Sammamish, Washington
  6. 2.7 4 km WSW of Mercer Island, Washington
  7. 1.8 1 km SSW of Esperance, Washington
  8. 1.9 3 km E of Granite Falls, Washington
  9. 2.3 2 km WNW of Redmond, Washington
  10. 1.7 2 km N of Mercer Island, Washington
  11. 1.6 1 km NE of Maple Valley, Washington
  12. 1.6 1 km WNW of Maple Valley, Washington
  13. 2.5 0 km S of Esperance, Washington
  14. 1.9 7 km SSW of Clinton, Washington
  15. 1.6 1 km S of Lake Marcel-Stillwater, 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.