QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

15 km N of Ashford, Washington

· 12 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pierce County 20 kmLewis County 45 kmThurston County 62 kmKing County 67 kmCowlitz County 93 kmKitsap County 95 kmSkamania County 97 kmMason County 101 kmKittitas County 104 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
12 km below the surface
Felt
no reports yet
Nearest
Pierce County, 20 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2490 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 21 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 5.8 730,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 520,000× the energy of this one
  3. Around the size people start to feel M 3.0 46× the energy of this one
  4. This earthquake M 1.9 about 21 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 46.8988, -122.0125. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pierce County, WA 20 km (12 mi) SSE of here earthquakes near Pierce County
Lewis County, WA 45 km (28 mi) NE of here earthquakes near Lewis County
Thurston County, WA 62 km (39 mi) E of here earthquakes near Thurston County
King County, WA 67 km (42 mi) SSW of here earthquakes near King County
Cowlitz County, WA 93 km (58 mi) NNE of here earthquakes near Cowlitz County
Kitsap County, WA 95 km (59 mi) SSE of here earthquakes near Kitsap County

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

Aftershocks so far

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

  1. 1.9 8 km NE of Ashford, Washington
  2. 1.6 24 km ENE of Ashford, Washington
  3. 1.6 2 km SSW of Kapowsin, Washington
  4. 1.6 13 km W of Greenwater, Washington
  5. 1.6 0 km ESE of Buckley, Washington
  6. 2.3 4 km SE of Black Diamond, Washington
  7. 1.8 12 km W of Greenwater, Washington
  8. 1.9 11 km ESE of Enumclaw, Washington
  9. 2.0 2 km N of Lakeland South, Washington
  10. 1.5 22 km ENE of Ashford, Washington
  11. 2.0 22 km ENE of Ashford, Washington
  12. 2.0 22 km ENE of Ashford, Washington
  13. 2.0 22 km ENE of Ashford, Washington
  14. 1.5 1 km SSW of Ravensdale, Washington
  15. 2.0 2 km SSW of Ravensdale, 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.