QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

13 km N of Amanda Park, Washington

· 28 km deep · released about 6.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jefferson County 36 kmGrays Harbor County 52 kmMason County 59 kmClallam County 59 kmKitsap County 92 kmThurston County 107 kmIsland County 110 kmPacific County 114 kmSan Juan County 118 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
28 km below the surface
Felt
no reports yet
Nearest
Jefferson County, 36 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1374 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 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 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 47.5815, -123.8732. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jefferson County, WA 36 km (22 mi) SW of here earthquakes near Jefferson County
Grays Harbor County, WA 52 km (32 mi) N of here earthquakes near Grays Harbor County
Mason County, WA 59 km (36 mi) WNW of here earthquakes near Mason County
Clallam County, WA 59 km (37 mi) S of here earthquakes near Clallam County
Kitsap County, WA 92 km (57 mi) W of here earthquakes near Kitsap County
Thurston County, WA 107 km (66 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

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

  1. 1.6 16 km WNW of Skokomish, Washington
  2. 1.6 5 km WNW of Humptulips, Washington
  3. 1.5 2 km ESE of Humptulips, Washington
  4. 1.6 9 km NE of Humptulips, Washington
  5. 1.7 12 km NE of Santiago, Washington
  6. 1.6 19 km E of Humptulips, Washington
  7. 2.0 9 km NE of Santiago, Washington
  8. 1.5 12 km NNW of Amanda Park, Washington
  9. 1.6 15 km NNE of Amanda Park, Washington
  10. 1.6 0 km S of Pacific Beach, Washington
  11. 2.0 9 km SSW of Humptulips, Washington
  12. 2.0 8 km WSW of Neilton, Washington
  13. 1.8 7 km SE of Queets, Washington
  14. 2.1 7 km ENE of Santiago, Washington
  15. 1.5 16 km NNE of Amanda Park, 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 6,200 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.