QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

6 km SW of Des Moines, Washington

· 22 km deep · released about 7.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kitsap County 36 kmPierce County 40 kmKing County 44 kmThurston County 59 kmMason County 59 kmLewis County 88 kmSnohomish County 89 kmIsland County 90 kmJefferson County 98 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
22 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Kitsap County, 36 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1604 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 7.8 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 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 47.3713, -122.3900. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kitsap County, WA 36 km (22 mi) SSE of here earthquakes near Kitsap County
Pierce County, WA 40 km (25 mi) NNW of here earthquakes near Pierce County
King County, WA 44 km (27 mi) WSW of here earthquakes near King County
Thurston County, WA 59 km (37 mi) NE of here earthquakes near Thurston County
Mason County, WA 59 km (37 mi) E of here earthquakes near Mason County
Lewis County, WA 88 km (55 mi) N of here earthquakes near Lewis County

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

Aftershocks so far

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

  1. 1.6 0 km SW of Esperance, Washington
  2. 1.5 Puget Sound region, Washington
  3. 1.7 Puget Sound region, Washington
  4. 1.6 2 km E of Kapowsin, Washington
  5. 2.2 7 km WSW of Seattle, Washington
  6. 1.9 3 km NNE of White Center, Washington
  7. 1.6 5 km W of Burley, Washington
  8. 1.5 2 km SW of Gorst, Washington
  9. 1.9 1 km ENE of Enetai, Washington
  10. 1.6 0 km WSW of Esperance, Washington
  11. 1.7 5 km S of Black Diamond, Washington
  12. 1.7 1 km WNW of Bonney Lake, Washington
  13. 1.6 1 km NNW of Keyport, Washington
  14. 1.9 0 km W of Keyport, Washington
  15. 2.4 1 km SE of Manchester, 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.