QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

1 km WNW of DuPont, Washington

· 25 km deep · released about 18 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Thurston County 23 kmPierce County 38 kmMason County 48 kmKitsap County 60 kmLewis County 61 kmKing County 75 kmGrays Harbor County 89 kmCowlitz County 100 kmJefferson County 102 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
25 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Thurston County, 23 km SW
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. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 18 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 5.8 840,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 600,000× the energy of this one
  3. Around the size people start to feel M 3.0 53× the energy of this one
  4. This earthquake M 1.9 about 18 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 47.0998, -122.6523. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Thurston County, WA 23 km (14 mi) NE of here earthquakes near Thurston County
Pierce County, WA 38 km (24 mi) W of here earthquakes near Pierce County
Mason County, WA 48 km (30 mi) SE of here earthquakes near Mason County
Kitsap County, WA 60 km (37 mi) S of here earthquakes near Kitsap County
Lewis County, WA 61 km (38 mi) NNW of here earthquakes near Lewis County
King County, WA 75 km (47 mi) SW of here earthquakes near King County

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

Aftershocks so far

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

  1. 1.9 0 km N of Vaughn, Washington
  2. 1.5 5 km W of Gorst, Washington
  3. 1.6 2 km SW of Elk Plain, Washington
  4. 1.5 5 km WSW of Shelton, Washington
  5. 1.7 5 km W of Burley, Washington
  6. 1.6 2 km SW of Elk Plain, Washington
  7. 1.6 4 km SE of Bethel, Washington
  8. 1.6 1 km NE of Artondale, Washington
  9. 1.9 1 km SSE of Parkwood, Washington
  10. 2.3 4 km NNW of Lakeland North, Washington
  11. 1.7 3 km WNW of Wauna, Washington
  12. 2.1 1 km SW of Home, Washington
  13. 2.4 1 km SSW of Home, Washington
  14. 1.6 2 km WSW of Home, Washington
  15. 2.7 3 km S of Home, 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.