Acid rain falls on Vanuatu islands as volcano belches ash

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Source: Radio New Zealand

The Manaro Voui volcano is spewing ash and smoke as high as four kilometres above sea level. The alert level remains at three on a scale of five and a 3km danger zone has been declared around the crater. 24 February 2026 Supplied/Sergei Kriukov – Unity Airlines

The Vanuatu government has decided not to order a mass evacuation of communities on Ambae island affected by acid rain from the Manaro Voui volcano.

On Friday the Council of Ministers (cabinet) endorsed the recommendations of the National Disaster Committee for a plan of action.

This included approving a budget of 20 million vatu (US$170,000) for a team from the National Disaster Management Office to go to Ambae on Saturday.

Once there they will assess the most affected parts of the island and have them declared disaster zones.

Climate change minister Ralph Regenvanu said there is no mandatory evacuation at this stage but people in the worst affected areas are encouraged to move to less affected parts of the island if they do not feel safe.

“Even though on Ambae we are hearing the activity of the volcano is changing, sometimes it is increasing and sometimes it is going down, it is still only at alert level three,” Regenvanu said speaking in Bislama.

Regenvanu said plans are in place should the volcanic activity increase even further.

“The council has also approved that if we go to alert level four, which is the worst case scenario, and will require the whole island to be declared a disaster zone and for us to start evacuations, an emergency plan is already in place.”

Acid rain impacts

Acid rain from the volcano on Ambae – 310km north west of the capital of Port Vila – is reportedly effecting water and food supplies.

Authorities say the volcano is spewing toxic burning ash which is now covering the entire island due to wind changes.

The Vanuatu Meteorology and Geohazard department (VMGD) says acid rain has now reached Santo, Malakula, Pentecost and Ambrym islands.

Its director, Levu Antfalo described its effects.

“It burns, right because it contains sulphuric oxide, it rains down and becomes acid rain. It burns their crops, pretty much anything that it gets in contact with, water as well. Usually those who use wells, drums, tanks that are not covered could be affected, but bore hold water seems to be okay,” he said.

Antfalo said the heavy ash fall also alters the PH levels in water, making it more acidic.

“I mean it burns their protein source, like vegetables.. We were told as well it increases the PH of water as well as prawns and fish that are there (in rivers).”

Vanuatu’s cabinet is convening an emergency meeting Friday to discuss the escalating situation on Ambae Island following increased volcanic activity at the Manaro volcano. Facebook / Ministry of the Prime Minister – Vanuatu

Edwin Tarai and his family were evacuated after Ambae erupted in 2018, and have never returned.

The 74-year-old, who lives in Santo, said people on Ambae were complaining about government inaction.

“There is no plan of moving out at the moment but there is a concern. People are complaining and wondering what is the government’s next move,” Tarai said.

The former nurse practitioner said that the noise is increasing and can be heard in east Santo, Pentecost and Ambrym islands.

Nixon Garae, a tug boat captain in Luganville, Santo has relatives in East Ambae, who described the noise.

“They said the noise is very loud because when people are talking you can’t hear the other person talking. It is causing ear pain because it’s very loud and heavy,” he said.

“Last Saturday when they were in church, when the preacher stood up at the front, they could hardly hear him because the noise was too loud.”

Vanuatu Meteorology and Geohazards Department

Active shield volcano

A volcano duty officer with New Zealand’s GNS Science, Yannick Behr said Ambae is a typical shield volcano and a very active one at that.

“It’s part of a chain of volcanoes in Vanuatu, they’re sitting on a rifting zone that is caused by the eastward subduction of the Australian plate. That tectonic process keeps that volcanism alive so all volcanoes on this rifting zone, they erupt quite regularly,” Beer said.

The latest plumes are about four kilometres above sea level, he said.

“It can twice as high, but again these are explosive eruptions but because of the consistency of the magma they tend to be not quite as catastrophic as you can see them (sic) from other types of volcanoes,” Beer said.

The geohazards department has issued a reminder to Ambae residents to stay out of the danger zone.

This comes after an aviation warning was issued on Thursday for volcanic ash cover over the island.

In a public address overnight director Levu Antfalo warned residents to take precautions.

“Just a reminder that the danger zone is a three kilometres radius around the crater. So do not go close to it,” Antfalo said.

“Things to take care of include water, protect your water supply. It will also affect food gardens. And also those with respiratory illnesses…this can affect the health of families that live close to or in the surrounding areas of Ambae,” he said.

– Published by EveningReport.nz and AsiaPacificReport.nz, see: MIL OSI in partnership with Radio New Zealand

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