QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

28 km NW of Hoodsport, Washington

· 40 km deep · released about 79 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jefferson County 25 kmMason County 32 kmKitsap County 56 kmGrays Harbor County 63 kmClallam County 68 kmIsland County 82 kmThurston County 85 kmSan Juan County 103 kmPierce County 111 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 2.3 (ml)
Depth
40 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Jefferson County, 25 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 934 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 79 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 190,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 79 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 47.5998, -123.3900. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jefferson County, WA 25 km (16 mi) SSE of here earthquakes near Jefferson County
Mason County, WA 32 km (20 mi) NNW of here earthquakes near Mason County
Kitsap County, WA 56 km (35 mi) W of here earthquakes near Kitsap County
Grays Harbor County, WA 63 km (39 mi) NNE of here earthquakes near Grays Harbor County
Clallam County, WA 68 km (42 mi) SSE of here earthquakes near Clallam County
Island County, WA 82 km (51 mi) SW of here earthquakes near Island County

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

Aftershocks so far

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

  1. 1.6 3 km W of Quilcene, Washington
  2. 1.7 11 km NW of Belfair, Washington
  3. 2.2 12 km ENE of Humptulips, Washington
  4. 1.6 16 km WNW of Skokomish, Washington
  5. 1.9 14 km WNW of Belfair, Washington
  6. 1.8 3 km SE of Quilcene, Washington
  7. 1.9 3 km NE of Quilcene, Washington
  8. 1.6 19 km E of Humptulips, Washington
  9. 2.8 21 km NW of Hoodsport, Washington
  10. 1.7 10 km NW of Belfair, Washington
  11. 1.6 15 km NNE of Amanda Park, Washington
  12. 1.6 2 km W of Belfair, Washington
  13. 1.6 24 km SSW of River Road, Washington
  14. 2.2 25 km W of Brinnon, Washington
  15. 2.8 16 km SSW of River Road, 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 520 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.