QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

4 km ENE of Elma, Washington

· 44 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grays Harbor County 37 kmMason County 39 kmThurston County 41 kmPacific County 61 kmWahkiakum County 81 kmKitsap County 87 kmJefferson County 88 kmLewis County 89 kmPierce County 91 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 1.7 (ml)
Depth
44 km below the surface
Felt
no reports yet
Nearest
Grays Harbor County, 37 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1411 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 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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 47.0230, -123.3575. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grays Harbor County, WA 37 km (23 mi) ESE of here earthquakes near Grays Harbor County
Mason County, WA 39 km (24 mi) SSW of here earthquakes near Mason County
Thurston County, WA 41 km (26 mi) WNW of here earthquakes near Thurston County
Pacific County, WA 61 km (38 mi) NNE of here earthquakes near Pacific County
Wahkiakum County, WA 81 km (50 mi) N of here earthquakes near Wahkiakum County
Kitsap County, WA 87 km (54 mi) SW of here earthquakes near Kitsap County

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

Aftershocks so far

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

  1. 1.5 17 km NNW of Pe Ell, Washington
  2. 2.0 14 km SSE of Cosmopolis, Washington
  3. 1.6 3 km SSW of Shelton, Washington
  4. 1.7 12 km SSE of Cosmopolis, Washington
  5. 1.6 15 km N of Satsop, Washington
  6. 1.6 24 km ESE of Neilton, Washington
  7. 1.8 5 km WSW of Aberdeen Gardens, Washington
  8. 1.6 2 km NNE of Raymond, Washington
  9. 1.7 9 km ENE of McCleary, Washington
  10. 1.6 7 km SSW of Shelton, Washington
  11. 1.6 2 km N of McCleary, Washington
  12. 1.9 7 km W of Shelton, Washington
  13. 1.5 17 km SSE of Montesano, Washington
  14. 1.6 5 km NW of Pe Ell, Washington
  15. 1.6 11 km S of Shelton, 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.