M4.3 Earthquake 293 km SSE of Alo, Wallis and Futuna — May 20, 2022
2022-05-20 17:22:55 UTC (2022-05-20) · approx. 5:22 AM UTC-12 local
On May 20, 2022 at 17:22 UTC, a magnitude 4.3 deep-focus earthquake struck 293 km SSE of Alo, Wallis and Futuna, at a depth of 394.1 km and coordinates -16.7598°, -177.0515°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-177.0515°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Alo, Wallis and Futuna?
The magnitude 4.3 earthquake that struck 293 km SSE of Alo, Wallis and Futuna on May 20, 2022 at 17:22 UTC had a depth of 394.1 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000hmqc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, May 20, 2022). M4.3 Earthquake 293 km SSE of Alo, Wallis and Futuna — May 20, 2022. Retrieved July 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hmqc/