Earthquakes in Canada — March 2025

31 earthquakes were recorded in Canada during March 2025, an average of 1.0 per day.

1 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 8 km.

The month's largest event in Canada was a magnitude 4.0 earthquake near Norman Wells, Canada on 04 March 2025 at 07:40 UTC. A magnitude 4.0 earthquake radiates roughly 15 tons of TNT equivalent in seismic energy.

That is well above the Canada monthly average of 21 events over the period we cover — an unusually active month, and up from the 25 recorded the previous month.

100% of events here are shallow (under 70 km), 0% intermediate (70–300 km) and 0% deep-focus (over 300 km). Almost everything here is crustal. That is characteristic of transform faulting or continental deformation rather than subduction — and it means shaking at the surface is strong for the magnitudes involved.

By band, the catalogue holds 5 in the magnitude 0 range, 16 in the magnitude 1 range, 8 in the magnitude 2 range, 1 in the magnitude 3 range, 1 in the magnitude 4 range.

Activity peaked on 12 March, when 2 events were recorded.

The month's largest events were M4.0 near Norman Wells, Canada on 04 March at 11 km; M3.6 near Rivière-Rouge, Canada on 19 March at 10 km; M2.5 near Oak Bay, Canada on 26 March at 46 km.

That is 47% above the 21 events Canada averages per month across the 21 months on record.