QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

5 km N of Anacortes, Washington

· 15 km deep · released about 32 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Juan County 36 kmIsland County 45 kmSkagit County 60 kmWhatcom County 66 kmSnohomish County 85 kmKitsap County 102 kmClallam County 106 kmJefferson County 107 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 2.0 (ml)
Depth
15 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
San Juan County, 36 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 150 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 32 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 470,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 330,000× the energy of this one
  3. Around the size people start to feel M 3.0 30× the energy of this one
  4. This earthquake M 2.0 about 32 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 48.5598, -122.6213. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Juan County, WA 36 km (22 mi) E of here earthquakes near San Juan County
Island County, WA 45 km (28 mi) N of here earthquakes near Island County
Skagit County, WA 60 km (37 mi) W of here earthquakes near Skagit County
Whatcom County, WA 66 km (41 mi) WSW of here earthquakes near Whatcom County
Snohomish County, WA 85 km (53 mi) NW of here earthquakes near Snohomish County
Kitsap County, WA 102 km (64 mi) N of here earthquakes near Kitsap County

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

Aftershocks so far

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

  1. 2.6 2 km ENE of Mount Vernon, Washington
  2. 1.6 2 km ESE of Oak Harbor, Washington
  3. 1.6 2 km E of Oak Harbor, Washington
  4. 2.1 3 km E of Oak Harbor, Washington
  5. 1.7 3 km E of Oak Harbor, Washington
  6. 2.1 3 km ESE of Oak Harbor, Washington
  7. 1.6 5 km N of Anacortes, Washington
  8. 2.1 3 km E of Oak Harbor, Washington
  9. 1.6 8 km WNW of Orcas, Washington
  10. 1.7 8 km WNW of Orcas, Washington
  11. 1.8 8 km WNW of Orcas, Washington
  12. 1.9 4 km E of Port Townsend, Washington
  13. 1.8 5 km E of Acme, Washington
  14. 1.8 2 km ESE of Oak Harbor, Washington
  15. 1.9 3 km E 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 5,200 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.