M4.9 Earthquake 64 km SSE of Isangel, Vanuatu — May 23, 2026
2026-05-23 15:07:59 UTC (5 hours ago) · approx. 2:07 AM UTC+11 local
On May 23, 2026 at 15:07 UTC, a magnitude 4.9 intermediate depth earthquake struck 64 km SSE of Isangel, Vanuatu, at a depth of 117.3 km and coordinates -20.0450°, 169.5855°. This earthquake was detected by 76 seismic stations with good location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
The epicenter is located in Vanuatu, a region characterized by the New Hebrides subduction zone, where the Australian Plate subducts eastward at approximately 90 mm per year. View all earthquakes in Vanuatu.
Learn more: Magnitude scale · Aftershock sequences
Earthquake Details
169.5855°E
Technical Information
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Common Questions
How strong was the magnitude 4.9 earthquake near Isangel, Vanuatu?
The magnitude 4.9 earthquake that struck 64 km SSE of Isangel, Vanuatu on May 23, 2026 at 15:07 UTC had a depth of 117.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -20.0450°, 169.5855°, which is 64 km SSE of Isangel, Vanuatu. View all earthquakes in Vanuatu.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Has Vanuatu had earthquakes this big before?
The largest recorded earthquake in Vanuatu was the M7.9 Vanuatu earthquake of October 7, 2009. Today's magnitude 4.9 event is significantly smaller than that historical record.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us6000szr9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 23, 2026). M4.9 Earthquake 64 km SSE of Isangel, Vanuatu — May 23, 2026. Retrieved May 23, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000szr9/