Earthquakes in Canada — May 2025

27 earthquakes were recorded in Canada during May 2025, an average of 0.9 per day.

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

The month's largest event in Canada was a magnitude 3.3 earthquake near Ucluelet, Canada on 01 May 2025 at 18:49 UTC. A magnitude 3.3 earthquake radiates roughly 1.2 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 down from the 33 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 1 in the magnitude -1 range, 6 in the magnitude 0 range, 11 in the magnitude 1 range, 7 in the magnitude 2 range, 2 in the magnitude 3 range.

Activity peaked on 01 May, when 4 events were recorded.

The month's largest events were M3.3 near Ucluelet, Canada on 01 May at 40 km; M3.0 near Ucluelet, Canada on 01 May at 39 km; M2.3 near Princeton, Canada on 29 May at -1 km.

That is 28% above the 21 events Canada averages per month across the 21 months on record.