M4.1 Earthquake 118 km NE of Saipan, Northern Mariana Islands — May 30, 2025
2025-05-30 21:34:44 UTC (2025-05-30) · approx. 7:34 AM UTC+10 local
On May 30, 2025 at 21:34 UTC, a magnitude 4.1 shallow crustal earthquake struck 118 km NE of Saipan, Northern Mariana Islands, at a depth of 48.3 km and coordinates 15.9201°, 146.5834°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
146.5834°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.1 earthquake near Saipan, Northern Mariana Islands?
The magnitude 4.1 earthquake that struck 118 km NE of Saipan, Northern Mariana Islands on May 30, 2025 at 21:34 UTC had a depth of 48.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000qk44). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, May 30, 2025). M4.1 Earthquake 118 km NE of Saipan, Northern Mariana Islands — May 30, 2025. Retrieved August 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000qk44/