Earthquakes in Puerto Rico — January 2025

63 earthquakes were recorded in Puerto Rico during January 2025, an average of 2.0 per day.

0 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 16 km.

The month's largest event in Puerto Rico was a magnitude 3.6 earthquake near Lajas, Puerto Rico on 06 January 2025 at 13:02 UTC. A magnitude 3.6 earthquake radiates roughly 4.2 tons of TNT equivalent in seismic energy.

That is close to the Puerto Rico monthly average of 62 events over the period we cover, and up from the 62 recorded the previous month.

98% of events here are shallow (under 70 km), 2% 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 12 in the magnitude 1 range, 49 in the magnitude 2 range, 2 in the magnitude 3 range.

Activity peaked on 08 January, when 9 events were recorded.

The month's largest events were M3.6 near Lajas, Puerto Rico on 06 January at 13 km; M3.2 near Juana Díaz, Puerto Rico on 01 January at 15 km; M2.7 near Lajas, Puerto Rico on 05 January at 18 km.

That is close to the 62 events Puerto Rico averages per month across the 2 months on record.

This month also holds the strongest earthquake recorded in Puerto Rico in our entire catalogue.