Earthquakes in the Northern Mariana Islands — March 2025
4 earthquakes were recorded in the Northern Mariana Islands during March 2025, an average of 0.1 per day.
4 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 170 km.
The month's largest event in the Northern Mariana Islands was a magnitude 4.9 earthquake near Saipan, Northern Mariana Islands on 01 March 2025 at 17:14 UTC. A magnitude 4.9 earthquake radiates roughly 338 tons of TNT equivalent in seismic energy.
That is close to the the Northern Mariana Islands monthly average of 3 events over the period we cover, and up from the 1 recorded the previous month.
0% of events here are shallow (under 70 km), 100% 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 4 in the magnitude 4 range.
The month's largest events were M4.9 near Saipan, Northern Mariana Islands on 01 March at 97 km; M4.8 near Pagan region, Northern Mariana Islands on 15 March at 176 km; M4.7 near Maug Islands region, Northern Mariana Islands on 07 March at 168 km.
That is 19% above the 3 events the Northern Mariana Islands averages per month across the 20 months on record.
Largest earthquakes in the Northern Mariana Islands, March 2025
4 events listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 4.9 | Saipan, Northern Mariana Islands | 96.8 | Northern Mariana Islands | View details View | |
| 4.8 | Pagan region, Northern Mariana Islands | 175.7 | Northern Mariana Islands | View details View | |
| 4.7 | Maug Islands region, Northern Mariana Islands | 168.3 | Northern Mariana Islands | View details View | |
| 4.3 | Pagan region, Northern Mariana Islands | 238.2 | Northern Mariana Islands | View details View |
Frequently asked questions
How many earthquakes hit the Northern Mariana Islands in March 2025?
4 earthquakes were recorded in the Northern Mariana Islands during March 2025, of which 4 were magnitude 4 or above.
What was the biggest earthquake in the Northern Mariana Islands in March 2025?
A magnitude 4.9 event near Saipan, Northern Mariana Islands on 01 March 2025.
Other months in the Northern Mariana Islands
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.