M4.4 Earthquake in the Pagan region, Northern Mariana Islands — May 20, 2026
2026-05-20 20:54:35 UTC (2026-05-20) · approx. 6:54 AM UTC+10 local
On May 20, 2026 at 20:54 UTC, a magnitude 4.4 intermediate depth earthquake struck in the Pagan region, Northern Mariana Islands, at a depth of 143.6 km and coordinates 18.2321°, 145.8839°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
145.8839°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake in the Pagan region, Northern Mariana Islands?
The magnitude 4.4 earthquake that struck in the Pagan region, Northern Mariana Islands on May 20, 2026 at 20:54 UTC had a depth of 143.6 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000snna). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 20, 2026). M4.4 Earthquake in the Pagan region, Northern Mariana Islands — May 20, 2026. Retrieved June 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000snna/