QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

8 km ENE of North Saanich, Canada

· 22 km deep · released about 7.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Juan County 26 kmIsland County 77 kmClallam County 78 kmJefferson County 100 kmWhatcom County 110 kmSkagit County 113 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
22 km below the surface
Felt
no reports yet
Nearest
San Juan County, 26 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2474 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 7.8 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 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 48.6972, -123.3205. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Juan County, WA 26 km (16 mi) NW of here earthquakes near San Juan County
Island County, WA 77 km (48 mi) NW of here earthquakes near Island County
Clallam County, WA 78 km (48 mi) NNE of here earthquakes near Clallam County
Jefferson County, WA 100 km (62 mi) N of here earthquakes near Jefferson County
Whatcom County, WA 110 km (68 mi) W of here earthquakes near Whatcom County
Skagit County, WA 113 km (70 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

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

  1. 1.8 8 km WNW of Orcas, Washington
  2. 2.4 12 km SSE of Friday Harbor, Washington
  3. 1.7 9 km WNW of Orcas, Washington
  4. 1.5 9 km E of Ganges, Canada
  5. 1.5 8 km WNW of Orcas, Washington
  6. 1.5 9 km WNW of Orcas, Washington
  7. 1.8 8 km WNW of Orcas, Washington
  8. 2.3 12 km ENE of Ganges, Canada
  9. 1.6 9 km E of Ganges, Canada
  10. 3.7 12 km ENE of Ganges, Canada
  11. 1.8 8 km WNW of Orcas, Washington
  12. 1.7 8 km WNW of Orcas, Washington
  13. 1.6 16 km NNW of Jamestown, Washington
  14. 2.5 13 km WNW of Ault Field, Washington
  15. 2.1 5 km NE of Six Mile, 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.