QuakeIndex

Earthquake · reviewed by a seismologist

M 3.7ml

12 km NNE of Aberdeen Gardens, Washington

· 35 km deep · released about 5.2 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grays Harbor County 11 kmMason County 45 kmPacific County 68 kmThurston County 71 kmJefferson County 72 kmKitsap County 95 kmWahkiakum County 99 kmClallam County 106 kmPierce County 118 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 3.7 (ml)
Depth
35 km below the surface
Felt
40 reports · strongest reported intensity IV
Measured shaking
intensity III (ShakeMap)
Nearest
Grays Harbor County, 11 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 553 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 40 people have reported feeling it to USGS.

How big was it?

This earthquake released about 5.2 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.7 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 33,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,500× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,000× the energy of this one
  4. This earthquake M 3.7 about 5.2 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 11× more

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 47.1668, -123.7083. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grays Harbor County, WA 11 km (7 mi) ENE of here earthquakes near Grays Harbor County
Mason County, WA 45 km (28 mi) WSW of here earthquakes near Mason County
Pacific County, WA 68 km (42 mi) N of here earthquakes near Pacific County
Thurston County, WA 71 km (44 mi) WNW of here earthquakes near Thurston County
Jefferson County, WA 72 km (45 mi) S of here earthquakes near Jefferson County
Kitsap County, WA 95 km (59 mi) WSW of here earthquakes near Kitsap County

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

Aftershocks so far

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

  1. 1.7 27 km NW of Hoodsport, Washington
  2. 1.5 3 km W of Hoodsport, Washington
  3. 2.0 14 km SE of Neilton, Washington
  4. 1.5 7 km WSW of Amanda Park, Washington
  5. 1.6 21 km SE of Neilton, Washington
  6. 1.5 14 km ENE of Neilton, Washington
  7. 1.7 4 km NW of Humptulips, Washington
  8. 1.6 7 km S of Humptulips, Washington
  9. 1.6 6 km S of Humptulips, Washington
  10. 1.9 6 km WNW of Hoodsport, Washington
  11. 3.2 3 km W of Skokomish, Washington
  12. 3.8 3 km WSW of Skokomish, Washington
  13. 1.6 3 km SSW of Aberdeen Gardens, Washington
  14. 1.6 2 km W of Aberdeen, Washington
  15. 1.7 26 km NW of Hoodsport, 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.