QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

10 km N of Jamestown, Washington

· 17 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Island County 30 kmSan Juan County 32 kmJefferson County 57 kmClallam County 62 kmKitsap County 72 kmMason County 97 kmSkagit County 97 kmSnohomish County 99 kmWhatcom County 114 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
17 km below the surface
Felt
1 report
Nearest
Island County, 30 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 349 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 11 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 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 970,000× the energy of this one
  3. Around the size people start to feel M 3.0 86× the energy of this one
  4. This earthquake M 1.7 about 11 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 48.2215, -123.0698. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Island County, WA 30 km (19 mi) WNW of here earthquakes near Island County
San Juan County, WA 32 km (20 mi) S of here earthquakes near San Juan County
Jefferson County, WA 57 km (36 mi) NE of here earthquakes near Jefferson County
Clallam County, WA 62 km (39 mi) ENE of here earthquakes near Clallam County
Kitsap County, WA 72 km (45 mi) NNW of here earthquakes near Kitsap County
Mason County, WA 97 km (60 mi) N of here earthquakes near Mason 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. 1.6 2 km ESE of Oak Harbor, Washington
  2. 1.6 8 km S of Port Hadlock-Irondale, Washington
  3. 2.5 11 km SSW of River Road, Washington
  4. 1.6 2 km E of Oak Harbor, Washington
  5. 2.1 3 km E of Oak Harbor, Washington
  6. 1.7 3 km E of Oak Harbor, Washington
  7. 2.1 3 km ESE of Oak Harbor, Washington
  8. 1.6 5 km N of Anacortes, Washington
  9. 2.1 3 km E of Oak Harbor, Washington
  10. 1.9 14 km NNE of Port Angeles East, Washington
  11. 1.6 8 km WNW of Orcas, Washington
  12. 1.7 8 km WNW of Orcas, Washington
  13. 1.8 8 km WNW of Orcas, Washington
  14. 1.9 4 km E of Port Townsend, Washington
  15. 1.8 2 km ESE of Oak Harbor, 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 4.5 on 2025-03-03 — it released about 15,000 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.