QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

3 km SE of Gorst, Washington

· 20 km deep · released about 7.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kitsap County 15 kmMason County 41 kmKing County 64 kmPierce County 64 kmThurston County 64 kmJefferson County 72 kmIsland County 73 kmSnohomish County 92 kmGrays Harbor County 97 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
20 km below the surface
Felt
no reports yet
Nearest
Kitsap County, 15 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 554 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 7.1 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 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.1 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 47.5040, -122.6797. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kitsap County, WA 15 km (9 mi) S of here earthquakes near Kitsap County
Mason County, WA 41 km (25 mi) ENE of here earthquakes near Mason County
King County, WA 64 km (39 mi) W of here earthquakes near King County
Pierce County, WA 64 km (40 mi) NW of here earthquakes near Pierce County
Thurston County, WA 64 km (40 mi) N of here earthquakes near Thurston County
Jefferson County, WA 72 km (45 mi) ESE of here earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 1.5 3 km SSW of Gorst, Washington
  2. 1.6 5 km NNE of Kingston, Washington
  3. 1.7 20 km W of Brinnon, Washington
  4. 2.6 3 km WSW of Erlands Point-Kitsap Lake, Washington
  5. 1.9 1 km N of Enetai, Washington
  6. 2.0 0 km ESE of Erlands Point-Kitsap Lake, Washington
  7. 1.8 1 km NNE of Burley, Washington
  8. 1.7 2 km NW of Indianola, Washington
  9. 1.7 2 km SSE of Manchester, Washington
  10. 1.7 6 km SSE of Port Ludlow, Washington
  11. 2.5 0 km N of Woodway, Washington
  12. 1.7 2 km SE of Manchester, Washington
  13. 1.6 9 km NNE of Quilcene, Washington
  14. 1.7 5 km SW of Hansville, Washington
  15. 1.5 2 km NNW of Indianola, 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 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.