M4.7 Earthquake 154 km SW of Merizo Village, Guam — May 28, 2026
2026-05-28 17:57:19 UTC (2026-05-28) · approx. 3:57 AM UTC+10 local
On May 28, 2026 at 17:57 UTC, a magnitude 4.7 shallow crustal earthquake struck 154 km SW of Merizo Village, Guam, at a depth of 39.2 km and coordinates 12.4412°, 143.5160°. This earthquake was detected by 72 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
143.5160°E
Technical Information
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Common Questions
How strong was the magnitude 4.7 earthquake near Merizo Village, Guam?
The magnitude 4.7 earthquake that struck 154 km SW of Merizo Village, Guam on May 28, 2026 at 17:57 UTC had a depth of 39.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 12.4412°, 143.5160°, which is 154 km SW of Merizo Village, Guam.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000sp4x). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 28, 2026). M4.7 Earthquake 154 km SW of Merizo Village, Guam — May 28, 2026. Retrieved June 16, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sp4x/