QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

11 km ESE of Forks, Washington

· -0.2 km deep · released about 340 lb of TNT

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10 km30 km60 km120 km N Clallam County 35 kmJefferson County 54 kmGrays Harbor County 93 kmMason County 101 kmSan Juan County 108 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 2.7 (ml)
Depth
-0.2 km below the surface
Felt
no reports yet
Nearest
Clallam County, 35 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1149 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 47.9048, -124.2413. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clallam County, WA 35 km (22 mi) SW of here earthquakes near Clallam County
Jefferson County, WA 54 km (34 mi) WNW of here earthquakes near Jefferson County
Grays Harbor County, WA 93 km (58 mi) NNW of here earthquakes near Grays Harbor County
Mason County, WA 101 km (63 mi) NW of here earthquakes near Mason County
San Juan County, WA 108 km (67 mi) SW of here earthquakes near San Juan County
Island County, WA 120 km (75 mi) WSW of here earthquakes near Island 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. 0.6 12 km SSE of Neah Bay, Washington
  2. 0.7 12 km SSE of Neah Bay, Washington
  3. 1.6 16 km NNW of Queets, Washington
  4. 1.5 19 km NNW of Forks, Washington
  5. 2.1 26 km W of Forks, Washington
  6. 1.7 12 km S of Forks, Washington
  7. 1.5 6 km E of Queets, Washington
  8. 1.6 11 km E of Forks, Washington
  9. 1.6 20 km N of Queets, Washington
  10. 1.6 4 km WSW of Forks, Washington
  11. 1.5 12 km NNW of Amanda Park, Washington
  12. 1.6 15 km NNE of Amanda Park, Washington
  13. 1.9 21 km NNW of Forks, Washington
  14. 1.8 21 km NNW of Forks, Washington
  15. 1.8 7 km SE of Queets, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.