Earthquakes in Guam — March 2025
3 earthquakes were recorded in Guam during March 2025, an average of 0.1 per day.
3 reached magnitude 4 or above and 2 reached magnitude 5 or above. The average focal depth was 95 km.
The month's largest event in Guam was a magnitude 5.3 earthquake near Yigo Village, Guam on 01 March 2025 at 20:02 UTC. A magnitude 5.3 earthquake radiates roughly 1,344 tons of TNT equivalent in seismic energy.
That is close to the Guam monthly average of 4 events over the period we cover.
67% of events here are shallow (under 70 km), 33% intermediate (70–300 km) and 0% deep-focus (over 300 km). A substantial share of intermediate-depth events points to a subducting slab beneath the region rather than purely crustal faulting.
By band, the catalogue holds 1 in the magnitude 4 range, 2 in the magnitude 5 range.
Activity peaked on 03 March, when 2 events were recorded.
The month's largest events were M5.3 near Yigo Village, Guam on 01 March at 64 km; M5.1 near Yigo Village, Guam on 03 March at 10 km; M4.5 near Merizo Village, Guam on 03 March at 211 km.
That is 24% below the 4 events Guam averages per month across the 18 months on record.
Largest earthquakes in Guam, March 2025
3 events listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 5.3 | Yigo Village, Guam | 63.6 | Guam | View details View | |
| 5.1 | Yigo Village, Guam | 10.0 | Guam | View details View | |
| 4.5 | Merizo Village, Guam | 210.9 | Guam | View details View |
Frequently asked questions
How many earthquakes hit Guam in March 2025?
3 earthquakes were recorded in Guam during March 2025, of which 3 were magnitude 4 or above.
What was the biggest earthquake in Guam in March 2025?
A magnitude 5.3 event near Yigo Village, Guam on 01 March 2025.
Other months in Guam
Magnitudes for March 2025 reflect the current USGS review status and may have been revised since first publication. See our guides on the magnitude scale, focal depth and why earthquakes cluster.