M4.0 Earthquake 282 km S of Alo, Wallis and Futuna — September 22, 2026
2026-09-22 05:31:33 UTC (3 hours ago) · approx. 5:31 PM UTC-12 local
On September 22, 2026 at 05:31 UTC, a magnitude 4.0 deep-focus earthquake struck 282 km S of Alo, Wallis and Futuna, at a depth of 428.1 km and coordinates -16.8256°, -177.6628°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-177.6628°E
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Common Questions
How strong was the magnitude 4.0 earthquake near Alo, Wallis and Futuna?
The magnitude 4.0 earthquake that struck 282 km S of Alo, Wallis and Futuna on September 22, 2026 at 05:31 UTC had a depth of 428.1 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000tj3l). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 22, 2026). M4.0 Earthquake 282 km S of Alo, Wallis and Futuna — September 22, 2026. Retrieved September 22, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tj3l/