QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

Washington-British Columbia border region

· 21 km deep · released about 200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Juan County 8 kmIsland County 54 kmClallam County 65 kmJefferson County 79 kmKitsap County 103 kmSkagit County 103 kmWhatcom County 109 kmSnohomish County 117 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 2.6 (ml)
Depth
21 km below the surface
Felt
40 reports · strongest reported intensity IV
Nearest
San Juan County, 8 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 679 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 40 people have reported feeling it to USGS.

How big was it?

This earthquake released about 200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 75,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 53,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.7× the energy of this one
  4. This earthquake M 2.6 about 200 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 48.4848, -123.2140. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Juan County, WA 8 km (5 mi) WSW of here earthquakes near San Juan County
Island County, WA 54 km (34 mi) NW of here earthquakes near Island County
Clallam County, WA 65 km (40 mi) NE of here earthquakes near Clallam County
Jefferson County, WA 79 km (49 mi) NNE of here earthquakes near Jefferson County
Kitsap County, WA 103 km (64 mi) NNW of here earthquakes near Kitsap County
Skagit County, WA 103 km (64 mi) W of here earthquakes near Skagit County

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

Aftershocks so far

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

  1. 2.0 1 km SSW of North Saanich, Canada
  2. 1.7 6 km E of North Saanich, Canada
  3. 1.8 5 km SE of Oak Bay, Canada
  4. 1.9 5 km NNE of Port Angeles, Washington
  5. 1.7 2 km NE of Six Mile, Canada
  6. 2.1 4 km WSW of Ault Field, Washington
  7. 2.1 7 km NW of Jamestown, Washington
  8. 2.1 2 km S of River Road, Washington
  9. 1.5 8 km WNW of Orcas, Washington
  10. 2.5 4 km ENE of Oak Bay, Canada
  11. 1.5 10 km E of Orcas, Washington
  12. 4.5 2025 Orcas Island, Washington
  13. 2.3 1 km NNE of Esquimalt, Canada
  14. 3.7 16 km SSE of Victoria, Canada
  15. 1.8 17 km NNW of Jamestown, 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.