QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

19 km ENE of Amanda Park, Washington

· -0.7 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jefferson County 32 kmMason County 42 kmGrays Harbor County 48 kmClallam County 67 kmKitsap County 77 kmThurston County 91 kmIsland County 102 kmPacific County 108 kmSan Juan County 116 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
-0.7 km below the surface
Felt
no reports yet
Nearest
Jefferson County, 32 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2727 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 43 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 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 47.5288, -123.6628. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jefferson County, WA 32 km (20 mi) SSW of here earthquakes near Jefferson County
Mason County, WA 42 km (26 mi) WNW of here earthquakes near Mason County
Grays Harbor County, WA 48 km (30 mi) NNE of here earthquakes near Grays Harbor County
Clallam County, WA 67 km (42 mi) SSE of here earthquakes near Clallam County
Kitsap County, WA 77 km (48 mi) W of here earthquakes near Kitsap County
Thurston County, WA 91 km (57 mi) NW of here earthquakes near Thurston County

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

Aftershocks so far

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

  1. 1.7 26 km ESE of Forks, Washington
  2. 1.6 13 km N of Amanda Park, Washington
  3. 1.6 Olympic Peninsula, Washington
  4. 1.7 8 km W of Humptulips, Washington
  5. 1.6 28 km SSW of Port Angeles, Washington
  6. 1.7 27 km NW of Hoodsport, Washington
  7. 1.5 3 km W of Hoodsport, Washington
  8. 2.0 14 km SE of Neilton, Washington
  9. 2.0 15 km N of Amanda Park, Washington
  10. 2.6 24 km SSW of River Road, Washington
  11. 1.6 29 km NNE of Amanda Park, Washington
  12. 1.5 7 km WSW of Amanda Park, Washington
  13. 2.8 34 km SSW of River Road, Washington
  14. 1.6 21 km SE of Neilton, Washington
  15. 1.5 14 km ENE of Neilton, 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 930 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.