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Vanuatu quake: 6.9 magnitude, tsunami warning lifted

By Gagariya Editorial Desk•25 Oct 2026 IST•2 min read•Human Reviewed & Fact-Checked
Vanuatu quake: 6.9 magnitude, tsunami warning lifted
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The tremor hit at about 1:31 pm Vanuatu time on Saturday, roughly 197 kilometres west-northwest of Port-Olry on the island of Espiritu Santo, at a depth of about 10 kilometres, according to the United States Geological Survey (USGS). Vanuatu's Geological Hazards Department urged people in coastal areas to move to higher ground while the warning was active.

The warning, then the all-clear

The Pacific Tsunami Warning Center's first message warned that hazardous waves were possible along coastlines within 300 kilometres of the epicentre. In its second message, issued at 03:28 UTC, the centre revised the magnitude to 6.9 and said the tsunami threat had passed, though minor sea-level fluctuations could still occur near the epicentre over the following hours. No tsunami threat was identified for Australia or New Zealand.

Why reports differ on the numbers

Early headlines carried the first estimate of 7.2; the revised figure of 6.9 came after further analysis. Some outlets report two strong shocks — 7.2 and 6.9 — about 25 seconds apart, plus a 6.3 quake nearby, while others describe a single quake revised downward. India's National Center for Seismology put the depth at 20 kilometres, against the USGS figure of 10 kilometres. None of these differences changes the official outcome: the tsunami warning was lifted the same day.

No casualties or significant damage were immediately reported, though assessments in remote island communities take time. Aftershocks were reported after the main shock, and Vanuatu's former prime minister Charlot Salwai posted publicly urging residents to stay alert and follow official updates.

Vanuatu sits on the Pacific Ring of Fire, one of the world's most seismically active regions, where earthquakes are frequent. What to watch now is the aftershock sequence and any damage assessments from the islands near the epicentre, which have not yet been reported.

Sources:

📷 फोटो: Graham Crumb, Wikimedia Commons (CC BY-SA 3.0)

Questions people ask

Was there a tsunami?
No. The Pacific Tsunami Warning Center first warned of hazardous waves within 300 km of the epicentre, then said in its final message that the tsunami threat had passed.
How strong was the earthquake?
First measured at magnitude 7.2, then revised to 6.9. Some outlets report two shocks (7.2 and 6.9) seconds apart; the revised official figure is 6.9.
Was anyone hurt?
No casualties or significant damage were immediately reported, but assessments in remote island communities take time.
Could there be aftershocks?
Yes. Aftershocks were already reported after the main shock, and residents have been urged to stay alert and follow official updates.
Why do early reports show different magnitudes?
Seismologists revise the first estimate as more data arrives. The 7.2 figure was preliminary; 6.9 is the revised figure.

Editorial Note: This explainer was researched using verified primary sources and official notifications, then independently fact-checked, reviewed, and finalized under human editorial guidance by the Gagariya desk.

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