QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

4 km E of Enumclaw, Washington

· 16 km deep · released about 37 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Pierce County 23 kmKing County 33 kmKitsap County 72 kmThurston County 74 kmLewis County 77 kmMason County 95 kmKittitas County 96 kmSnohomish County 96 kmIsland County 120 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 2.1 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Pierce County, 23 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 445 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 37 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 410,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 290,000× the energy of this one
  3. Around the size people start to feel M 3.0 26× the energy of this one
  4. This earthquake M 2.1 about 37 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 47.2020, -121.9367. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Pierce County, WA 23 km (15 mi) NE of here earthquakes near Pierce County
King County, WA 33 km (21 mi) SSW of here earthquakes near King County
Kitsap County, WA 72 km (45 mi) SE of here earthquakes near Kitsap County
Thurston County, WA 74 km (46 mi) ENE of here earthquakes near Thurston County
Lewis County, WA 77 km (48 mi) NNE of here earthquakes near Lewis County
Mason County, WA 95 km (59 mi) E of here earthquakes near Mason 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. 1.6 10 km ENE of Ashford, Washington
  2. 1.5 0 km ESE of Browns Point, Washington
  3. 3.0 2 km NNW of Ames Lake, Washington
  4. 1.6 8 km SE of Enumclaw, Washington
  5. 2.5 16 km NE of Ashford, Washington
  6. 1.5 4 km NE of Dash Point, Washington
  7. 1.9 1 km NNW of Mirrormont, Washington
  8. 2.4 6 km SSW of Wilderness Rim, Washington
  9. 1.7 1 km S of Wilderness Rim, Washington
  10. 1.5 22 km ENE of Ashford, Washington
  11. 2.0 22 km ENE of Ashford, Washington
  12. 1.5 3 km NNW of Bryn Mawr-Skyway, Washington
  13. 1.7 3 km NNW of Bryn Mawr-Skyway, Washington
  14. 1.7 1 km SE of Kapowsin, Washington
  15. 2.2 2 km SE of Buckley, 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.