M5.2 Earthquake in the Mariana Islands region — March 29, 2025
2025-03-29 02:11:07 UTC (2025-03-29) · approx. 12:11 PM UTC+10 local
On March 29, 2025 at 02:11 UTC, a magnitude 5.2 shallow crustal earthquake struck in the Mariana Islands region, at a depth of 10.0 km and coordinates 12.5449°, 147.8694°. This earthquake was detected by 65 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 416, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.2 releases seismic energy equivalent to roughly 951 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.3 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
147.8694°E
Technical Information
Common Questions
How strong was the magnitude 5.2 earthquake in the Mariana Islands region?
The magnitude 5.2 earthquake that struck in the Mariana Islands region on March 29, 2025 at 02:11 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 12.5449°, 147.8694°, which is in the Mariana Islands region.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.2 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000pnig). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 29, 2025). M5.2 Earthquake in the Mariana Islands region — March 29, 2025. Retrieved March 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000pnig/