M5.1 Earthquake in the Pagan region, Northern Mariana Islands — April 11, 2025
2025-04-11 03:18:21 UTC (2025-04-11) · approx. 1:18 PM UTC+10 local
Felt by 2 people across nearby locations.
On April 11, 2025 at 03:18 UTC, a magnitude 5.1 intermediate depth earthquake struck in the Pagan region, Northern Mariana Islands, at a depth of 279.7 km and coordinates 18.8878°, 145.3744°. This earthquake was detected by 89 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 401, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 2 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
145.3744°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.1 earthquake in the Pagan region, Northern Mariana Islands?
The magnitude 5.1 earthquake that struck in the Pagan region, Northern Mariana Islands on April 11, 2025 at 03:18 UTC had a depth of 279.7 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 18.8878°, 145.3744°, which is in the Pagan region, Northern Mariana Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000q5aq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, April 11, 2025). M5.1 Earthquake in the Pagan region, Northern Mariana Islands — April 11, 2025. Retrieved April 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000q5aq/