M4.4 Earthquake 152 km W of Neiafu, Tonga — April 28, 2026
2026-04-28 19:13:13 UTC (2026-04-28) · approx. 7:13 AM UTC-12 local
On April 28, 2026 at 19:13 UTC, a magnitude 4.4 intermediate depth earthquake struck 152 km W of Neiafu, Tonga, at a depth of 220.2 km and coordinates -18.5048°, -175.4157°.
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
-175.4157°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake near Neiafu, Tonga?
The magnitude 4.4 earthquake that struck 152 km W of Neiafu, Tonga on April 28, 2026 at 19:13 UTC had a depth of 220.2 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: us7000sgrr). 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 152 km W of Neiafu, Tonga — April 28, 2026. Retrieved July 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sgrr/