M4.0 Earthquake 55 km S of Isangel, Vanuatu — May 22, 2026
2026-05-22 17:07:03 UTC (2026-05-22) · approx. 4:07 AM UTC+11 local
On May 22, 2026 at 17:07 UTC, a magnitude 4.0 intermediate depth earthquake struck 55 km S of Isangel, Vanuatu, at a depth of 125.6 km and coordinates -20.0397°, 169.3752°.
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
169.3752°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Isangel, Vanuatu?
The magnitude 4.0 earthquake that struck 55 km S of Isangel, Vanuatu on May 22, 2026 at 17:07 UTC had a depth of 125.6 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: us7000spaf). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 22, 2026). M4.0 Earthquake 55 km S of Isangel, Vanuatu — May 22, 2026. Retrieved May 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000spaf/