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Seismic Activity in Vanuatu Islands Recorded on October 28

A magnitude M6.2 earthquake struck the Vanuatu Sea region early morning, with INGV Italy monitoring depth at 52.3 kilometers.

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News card for Seismic Activity in Vanuatu Islands Recorded on October 28

The Italian National Institute of Geophysics and Volcanology reported a significant seismic event occurring on October 28th in the waters surrounding the Vanuatu Islands. This initial record indicates a magnitude measurement of M6.2, which stands as the primary data point for this specific incident.

According to the INGV catalog update timestamped at approximately two minutes past midnight UTC, the earthquake's epicenter was located with a depth of 52.3 kilometers beneath the ocean surface. This depth places the origin within the upper crustal layers typical for subduction zone activity in that region.

Earlier reports from GDACS provided slightly varying magnitude estimates for similar events on the same date, including readings of M6 and M5.8 with depths consistently noted at ten kilometers by those specific monitoring systems.

The discrepancy between the INGV depth measurement and earlier shallow-depth reports highlights how seismic networks often refine their location data as more sensor information becomes available over time.

While some initial summaries suggested potential impacts on thousands of people, other contemporaneous records indicated no affected populations within a hundred-kilometer radius for similar magnitude events occurring at that hour.

No official statements regarding casualties or structural damage have been issued by local authorities yet, as the full extent of ground shaking remains under evaluation following this M6.2 registration.

At a glance

Cited sources

SURVEY-INGV-A event record: Vanuatu Islands [Sea: Vanuatu] — INGV ItalyGreen earthquake (Magnitude 5.6M, Depth:10km) in Vanuatu 28/10/2026 02:59 UTC, 3 thousand in MMI III. — GDACSGreen earthquake (Magnitude 6M, Depth:10km) in Vanuatu Islands 28/10/2026 02:21 UTC, No people affected in 100km. — GDACSGreen earthquake (Magnitude 5.5M, Depth:10km) in Vanuatu Islands 28/10/2026 01:39 UTC, [unknown]. — GDACSGreen earthquake (Magnitude 5.8M, Depth:10km) in Vanuatu 27/10/2026 08:55 UTC, 1 thousand in MMI III. — GDACS
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