QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

10 km NW of Ganges, Canada

Yes. A magnitude 1.6 earthquake was recorded 10 km NW of Ganges, Canada, at 6:44 pm PST on 13 December 2025 (02:44 UTC), 15 km deep.

· 15 km deep · released about 6.4 lb of TNT

10 km30 km60 km120 km N San Juan County 58 kmClallam County 94 kmIsland County 109 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
15 km below the surface
Felt
no reports yet
Nearest
San Juan County, 58 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 333 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 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 48.9273, -123.5787. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Juan County, WA 58 km (36 mi) SE earthquakes near San Juan County
Clallam County, WA 94 km (58 mi) SSW earthquakes near Clallam County
Island County, WA 109 km (67 mi) SE earthquakes near Island County

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

Aftershocks so far

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

  1. 0.7 3 km N of North Saanich, Canada
  2. 1.2 7 km N of Six Mile, Canada
  3. 1.8 3 km WNW of Ladysmith, Canada
  4. 1.7 14 km SW of Cowichan Bay, Canada
  5. 1.9 10 km S of Cowichan Bay, Canada
  6. 1.9 10 km ESE of Salt Spring Island, 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.