QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

12 km ENE of Jamestown, Washington

· 52 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Island County 19 kmSan Juan County 41 kmJefferson County 60 kmKitsap County 61 kmClallam County 72 kmSnohomish County 87 kmSkagit County 90 kmMason County 92 kmWhatcom 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
52 km below the surface
Felt
no reports yet
Nearest
Island County, 19 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 567 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 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× 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 48.1617, -122.9215. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Island County, WA 19 km (12 mi) W of here earthquakes near Island County
San Juan County, WA 41 km (25 mi) SSE of here earthquakes near San Juan County
Jefferson County, WA 60 km (37 mi) NE of here earthquakes near Jefferson County
Kitsap County, WA 61 km (38 mi) NNW of here earthquakes near Kitsap County
Clallam County, WA 72 km (45 mi) E of here earthquakes near Clallam County
Snohomish County, WA 87 km (54 mi) W of here earthquakes near Snohomish County

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

Aftershocks so far

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

  1. 2.3 16 km SSE of Friday Harbor, Washington
  2. 1.7 5 km SSE of Quilcene, Washington
  3. 1.6 5 km N of Oak Bay, Canada
  4. 2.3 5 km NNE of Oak Bay, Canada
  5. 1.5 6 km WSW of Port Ludlow, Washington
  6. 1.6 8 km NE of Oak Bay, Canada
  7. 1.7 4 km SSW of Port Ludlow, Washington
  8. 1.6 5 km SSW of Port Ludlow, Washington
  9. 1.6 3 km N of Kingston, Washington
  10. 1.6 Puget Sound region, Washington
  11. 1.5 4 km SSW of Clinton, Washington
  12. 1.6 8 km NNW of Jamestown, Washington
  13. 1.7 4 km NE of La Conner, Washington
  14. 1.5 7 km WNW of Lofall, Washington
  15. 1.9 7 km SSW of Port Ludlow, 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.