QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

0 km SE of Normandy Park, Washington

· 22 km deep · released about 19 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kitsap County 33 kmKing County 38 kmPierce County 45 kmMason County 63 kmThurston County 67 kmSnohomish County 81 kmIsland County 84 kmLewis County 95 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 1.9 (ml)
Depth
22 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Kitsap County, 33 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 565 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 7 people have reported feeling it to USGS.

How big was it?

This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 810,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 580,000× the energy of this one
  3. Around the size people start to feel M 3.0 51× the energy of this one
  4. This earthquake M 1.9 about 19 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 47.4353, -122.3388. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kitsap County, WA 33 km (20 mi) SE of here earthquakes near Kitsap County
King County, WA 38 km (24 mi) W of here earthquakes near King County
Pierce County, WA 45 km (28 mi) NNW of here earthquakes near Pierce County
Mason County, WA 63 km (39 mi) E of here earthquakes near Mason County
Thurston County, WA 67 km (42 mi) NNE of here earthquakes near Thurston County
Snohomish County, WA 81 km (50 mi) SSW of here earthquakes near Snohomish County

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

Aftershocks so far

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

  1. 1.8 4 km N of Duvall, Washington
  2. 1.8 5 km NNE of Duvall, Washington
  3. 1.6 6 km NE of Fall City, Washington
  4. 1.7 3 km ENE of Enetai, Washington
  5. 1.9 3 km WSW of Wilderness Rim, Washington
  6. 2.1 Puget Sound region, Washington
  7. 1.5 3 km ENE of Enetai, Washington
  8. 1.6 1 km SW of Keyport, Washington
  9. 1.5 2 km N of Boulevard Park, Washington
  10. 1.5 2 km SSW of Lynnwood, Washington
  11. 1.6 4 km ESE of Carnation, Washington
  12. 1.8 1 km N of Fairwood, Washington
  13. 1.8 13 km ESE of Enumclaw, Washington
  14. 2.0 1 km ENE of Enetai, Washington
  15. 1.6 4 km SE of Ames Lake, 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.