QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

11 km ENE of Salt Spring Island, Canada

· 12 km deep · released about 6.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Juan County 42 kmClallam County 91 kmIsland County 91 kmWhatcom County 110 kmJefferson County 117 kmSkagit County 119 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 1.6 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
San Juan County, 42 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1067 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 6.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 48.8490, -123.3440. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Juan County, WA 42 km (26 mi) NNW of here earthquakes near San Juan County
Clallam County, WA 91 km (57 mi) NNE of here earthquakes near Clallam County
Island County, WA 91 km (57 mi) NNW of here earthquakes near Island County
Whatcom County, WA 110 km (69 mi) W of here earthquakes near Whatcom County
Jefferson County, WA 117 km (73 mi) N of here earthquakes near Jefferson County
Skagit County, WA 119 km (74 mi) WNW of here earthquakes near Skagit County

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

Aftershocks so far

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

  1. 1.8 3 km WNW of Ladysmith, Canada
  2. 1.7 14 km SW of Cowichan Bay, Canada
  3. 1.6 8 km WNW of Orcas, Washington
  4. 1.7 8 km WNW of Orcas, Washington
  5. 1.8 8 km WNW of Orcas, Washington
  6. 1.9 10 km S of Cowichan Bay, Canada
  7. 2.2 9 km SW of White Rock, Canada
  8. 2.2 5 km NW of Orcas, Washington
  9. 1.5 7 km WNW of Friday Harbor, Washington
  10. 1.9 10 km ESE of Salt Spring Island, Canada
  11. 1.6 3 km N of Langford, Canada
  12. 1.6 10 km NW of Ganges, Canada
  13. 1.8 9 km WNW of White Rock, Canada
  14. 2.7 10 km SE of Salt Spring Island, Canada
  15. 1.7 6 km SW of Saanichton, Canada

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.