QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

26 km ESE of Forks, Washington

· 20 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Clallam County 34 kmJefferson County 41 kmGrays Harbor County 82 kmMason County 86 kmSan Juan County 104 kmKitsap County 108 kmIsland County 110 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 1.7 (ml)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Clallam County, 34 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1365 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 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 95× the energy of this one
  4. This earthquake M 1.7 about 10 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 47.8340, -124.0692. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Clallam County, WA 34 km (21 mi) SSW of here earthquakes near Clallam County
Jefferson County, WA 41 km (25 mi) W of here earthquakes near Jefferson County
Grays Harbor County, WA 82 km (51 mi) NNW of here earthquakes near Grays Harbor County
Mason County, WA 86 km (53 mi) NW of here earthquakes near Mason County
San Juan County, WA 104 km (64 mi) SW of here earthquakes near San Juan County
Kitsap County, WA 108 km (67 mi) WNW of here earthquakes near Kitsap County

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

Aftershocks so far

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

  1. 1.8 34 km NE of Amanda Park, Washington
  2. 1.7 35 km NE of Amanda Park, Washington
  3. 1.6 16 km NNW of Queets, Washington
  4. 1.5 19 km NNW of Forks, Washington
  5. 1.7 12 km S of Forks, Washington
  6. 1.5 6 km E of Queets, Washington
  7. 1.6 11 km E of Forks, Washington
  8. 2.0 35 km NE of Amanda Park, Washington
  9. 1.6 20 km N of Queets, Washington
  10. 1.7 12 km NE of Santiago, Washington
  11. 1.6 4 km WSW of Forks, Washington
  12. 1.5 12 km NNW of Amanda Park, Washington
  13. 1.6 15 km NNE of Amanda Park, Washington
  14. 1.9 21 km NNW of Forks, Washington
  15. 1.8 21 km NNW of Forks, 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 4,000 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.