QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

14 km N of Hoodsport, Washington

· 47 km deep · released about 40 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mason County 21 kmKitsap County 39 kmJefferson County 41 kmGrays Harbor County 70 kmThurston County 71 kmIsland County 77 kmClallam County 85 kmPierce County 92 kmKing County 98 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
47 km below the surface
Felt
no reports yet
Nearest
Mason County, 21 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1137 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 40 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 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 47.5390, -123.1425. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mason County, WA 21 km (13 mi) N of here earthquakes near Mason County
Kitsap County, WA 39 km (24 mi) WSW of here earthquakes near Kitsap County
Jefferson County, WA 41 km (26 mi) SE of here earthquakes near Jefferson County
Grays Harbor County, WA 70 km (43 mi) NE of here earthquakes near Grays Harbor County
Thurston County, WA 71 km (44 mi) NNW of here earthquakes near Thurston County
Island County, WA 77 km (48 mi) SSW of here earthquakes near Island 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. 1.9 4 km WNW of Gorst, Washington
  2. 1.6 10 km S of Shelton, Washington
  3. 1.9 2 km E of Belfair, Washington
  4. 1.7 8 km SSW of Seabeck, Washington
  5. 1.6 10 km SSE of Shelton, Washington
  6. 1.8 3 km WNW of Gorst, Washington
  7. 3.0 0 km E of Enetai, Washington
  8. 1.8 29 km WNW of Hoodsport, Washington
  9. 2.6 6 km NW of Belfair, Washington
  10. 1.6 6 km SSW of Port Ludlow, Washington
  11. 1.6 6 km SSW of Shelton, Washington
  12. 2.5 4 km WSW of Artondale, Washington
  13. 2.0 6 km WNW of Lofall, Washington
  14. 1.7 14 km W of Skokomish, Washington
  15. 1.7 5 km SW of Port Ludlow, 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 2017-02-23 — it released about 1,000 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.