QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

3 km ESE of Fircrest, Washington

· 32 km deep · released about 24 lb of TNT

10 km30 km60 km120 km N Pierce County 31 kmThurston County 42 kmKitsap County 48 kmMason County 54 kmKing County 57 kmLewis County 72 kmJefferson County 102 kmGrays Harbor County 103 kmIsland County 105 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
32 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Pierce County, 31 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 514 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 24 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 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 47.2225, -122.4772. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pierce County, WA 31 km (19 mi) NW of here earthquakes near Pierce County
Thurston County, WA 42 km (26 mi) NE of here earthquakes near Thurston County
Kitsap County, WA 48 km (30 mi) SSE of here earthquakes near Kitsap County
Mason County, WA 54 km (34 mi) ESE of here earthquakes near Mason County
King County, WA 57 km (35 mi) WSW of here earthquakes near King County
Lewis County, WA 72 km (45 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

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

  1. 1.7 0 km W of Beaux Arts Village, Washington
  2. 1.5 1 km WSW of Kapowsin, Washington
  3. 1.6 2 km NNE of Enetai, Washington
  4. 1.7 10 km NW of Belfair, Washington
  5. 1.6 2 km W of Belfair, Washington
  6. 1.6 8 km SSW of Grapeview, Washington
  7. 2.2 4 km ESE of Enumclaw, Washington
  8. 1.6 1 km SSE of Kapowsin, Washington
  9. 1.5 0 km SSW of Carbonado, Washington
  10. 1.9 1 km NNW of Maple Valley, Washington
  11. 1.6 5 km SE of Enumclaw, Washington
  12. 1.5 5 km NNE of Dash Point, Washington
  13. 2.1 4 km NE of Vashon, Washington
  14. 1.8 1 km SE of Kapowsin, Washington
  15. 1.8 16 km SSE of Carbonado, 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.