QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

7 km S of Humptulips, Washington

· 29 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Grays Harbor County 12 kmMason County 64 kmPacific County 69 kmJefferson County 79 kmThurston County 90 kmWahkiakum County 105 kmClallam County 106 kmKitsap County 113 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
29 km below the surface
Felt
no reports yet
Nearest
Grays Harbor County, 12 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1911 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 7.6 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 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× 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 7.6 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 47.1618, -123.9727. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Grays Harbor County, WA 12 km (8 mi) WNW of here earthquakes near Grays Harbor County
Mason County, WA 64 km (40 mi) WSW of here earthquakes near Mason County
Pacific County, WA 69 km (43 mi) NNW of here earthquakes near Pacific County
Jefferson County, WA 79 km (49 mi) SSW of here earthquakes near Jefferson County
Thurston County, WA 90 km (56 mi) WNW of here earthquakes near Thurston County
Wahkiakum County, WA 105 km (65 mi) NNW of here earthquakes near Wahkiakum 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 8 km NW of Aberdeen Gardens, Washington
  2. 1.7 11 km S of Humptulips, Washington
  3. 2.0 9 km SSW of Humptulips, Washington
  4. 2.0 8 km WSW of Neilton, Washington
  5. 1.8 7 km SE of Queets, Washington
  6. 2.1 7 km ENE of Santiago, Washington
  7. 2.0 14 km SSE of Cosmopolis, Washington
  8. 1.5 16 km NNE of Amanda Park, Washington
  9. 1.7 12 km SSE of Cosmopolis, Washington
  10. 1.6 15 km N of Satsop, Washington
  11. 1.6 24 km ESE of Neilton, Washington
  12. 1.8 5 km WSW of Aberdeen Gardens, Washington
  13. 1.6 2 km ENE of Humptulips, Washington
  14. 2.1 14 km W of Neilton, Washington
  15. 1.7 8 km WNW of Taholah, 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.

On USGS

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