M4.4 Earthquake 200 km SW of Merizo Village, Guam — April 28, 2026
2026-04-28 23:30:51 UTC (2026-04-28) · approx. 9:30 AM UTC+10 local
On April 28, 2026 at 23:30 UTC, a magnitude 4.4 shallow crustal earthquake struck 200 km SW of Merizo Village, Guam, at a depth of 10.0 km and coordinates 11.8685°, 143.5001°.
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
143.5001°E
Technical Information
Common Questions
How strong was the magnitude 4.4 earthquake near Merizo Village, Guam?
The magnitude 4.4 earthquake that struck 200 km SW of Merizo Village, Guam on April 28, 2026 at 23:30 UTC had a depth of 10.0 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.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Actions
Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000svqg). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, April 28, 2026). M4.4 Earthquake 200 km SW of Merizo Village, Guam — April 28, 2026. Retrieved May 19, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000svqg/