QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

21 km SE of Neilton, Washington

· 32 km deep · released about 6.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grays Harbor County 24 kmMason County 37 kmJefferson County 58 kmThurston County 75 kmPacific County 82 kmKitsap County 85 kmClallam County 92 kmWahkiakum County 113 kmPierce County 117 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 1.6 (ml)
Depth
32 km below the surface
Felt
no reports yet
Nearest
Grays Harbor County, 24 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1589 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 6.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 47.2940, -123.6628. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grays Harbor County, WA 24 km (15 mi) NNE of here earthquakes near Grays Harbor County
Mason County, WA 37 km (23 mi) W of here earthquakes near Mason County
Jefferson County, WA 58 km (36 mi) S of here earthquakes near Jefferson County
Thurston County, WA 75 km (46 mi) WNW of here earthquakes near Thurston County
Pacific County, WA 82 km (51 mi) N of here earthquakes near Pacific County
Kitsap County, WA 85 km (53 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

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

  1. 2.5 16 km NNE of Amanda Park, Washington
  2. 2.2 16 km NNE of Amanda Park, Washington
  3. 1.9 7 km W of Shelton, Washington
  4. 1.5 8 km SSW of Cosmopolis, Washington
  5. 2.2 2 km NW of Markham, Washington
  6. 2.2 7 km NNW of Hoodsport, Washington
  7. 2.4 6 km SSW of Neilton, Washington
  8. 1.7 16 km E of Humptulips, Washington
  9. 2.7 7 km NNW of Montesano, Washington
  10. 1.6 1 km NNE of Humptulips, Washington
  11. 1.6 1 km N of Humptulips, Washington
  12. 1.6 6 km WSW of Shelton, Washington
  13. 2.1 12 km S of Brady, Washington
  14. 1.9 16 km NW of Amanda Park, Washington
  15. 1.6 12 km NNE of Aberdeen Gardens, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.1 on 2018-11-19 — it released about 5,800 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.