Earthquakes in the Northern Mariana Islands — July 2025
3 earthquakes were recorded in the Northern Mariana Islands during July 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 144 km.
The month's largest event in the Northern Mariana Islands was a magnitude 5.4 earthquake near Pagan region, Northern Mariana Islands on 24 July 2025 at 19:22 UTC. A magnitude 5.4 earthquake radiates roughly 1,898 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 down from the 5 recorded the previous month.
33% of events here are shallow (under 70 km), 67% 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 2 in the magnitude 4 range, 1 in the magnitude 5 range.
The month's largest events were M5.4 near Pagan region, Northern Mariana Islands on 24 July at 143 km; M4.9 near Pagan region, Northern Mariana Islands on 25 July at 254 km; M4.8 near Saipan, Northern Mariana Islands on 05 July at 35 km.
That is 12% below the 3 events the Northern Mariana Islands averages per month across the 20 months on record.
Largest earthquakes in the Northern Mariana Islands, July 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 |
|---|---|---|---|---|---|
| 5.4 | Pagan region, Northern Mariana Islands | 143.0 | Northern Mariana Islands | View details View | |
| 4.9 | Pagan region, Northern Mariana Islands | 253.8 | Northern Mariana Islands | View details View | |
| 4.8 | Saipan, Northern Mariana Islands | 35.0 | Northern Mariana Islands | View details View |
Frequently asked questions
How many earthquakes hit the Northern Mariana Islands in July 2025?
3 earthquakes were recorded in the Northern Mariana Islands during July 2025, of which 3 were magnitude 4 or above.
What was the biggest earthquake in the Northern Mariana Islands in July 2025?
A magnitude 5.4 event near Pagan region, Northern Mariana Islands on 24 July 2025.
Other months in the Northern Mariana Islands
Magnitudes for July 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.