Earthquakes in Micronesia — December 2025
3 earthquakes were recorded in Micronesia during December 2025, an average of 0.1 per day.
3 reached magnitude 4 or above and 1 reached magnitude 5 or above. The average focal depth was 10 km.
The month's largest event in Micronesia was a magnitude 5.0 earthquake near Colonia, Micronesia on 08 December 2025 at 20:31 UTC. A magnitude 5.0 earthquake radiates roughly 477 tons of TNT equivalent in seismic energy.
That is well above the Micronesia monthly average of 2 events over the period we cover — an unusually active month, and up from the 2 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 2 in the magnitude 4 range, 1 in the magnitude 5 range.
The month's largest events were M5.0 near Colonia, Micronesia on 08 December at 10 km; M4.7 near Fais, Micronesia on 31 December at 10 km; M4.6 near Colonia, Micronesia on 01 December at 10 km.
That is 56% above the 2 events Micronesia averages per month across the 13 months on record.
Largest earthquakes in Micronesia, December 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 |
|---|---|---|---|---|---|
| 5.0 | Colonia, Micronesia | 10.0 | Micronesia | View details View | |
| 4.7 | Fais, Micronesia | 10.0 | Micronesia | View details View | |
| 4.6 | Colonia, Micronesia | 10.0 | Micronesia | View details View |
Frequently asked questions
How many earthquakes hit Micronesia in December 2025?
3 earthquakes were recorded in Micronesia during December 2025, of which 3 were magnitude 4 or above.
What was the biggest earthquake in Micronesia in December 2025?
A magnitude 5.0 event near Colonia, Micronesia on 08 December 2025.
Other months in Micronesia
Magnitudes for December 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.