When White Island erupted, there would have been hot steam clouds, poisonous gases, and falling rocks – in short, chaos for those on the island.
According to Dr. Jessica Johnson, a volcanologist at the University of East Anglia in England, poisonous gases would have spilled from the volcano – so much that people would have been able to taste the chemicals.
The volcano – which has an acidic lake in its crater – would have thrown out hot steam clouds, she added.
The eruption would have also created “ballistics” – or falling rocks.
On top of that, the explosion would have been very loud, creating a “chaotic” and “unpleasant” situation, she said.
Around 50 people were believed to be on or around the island at the time of the blast, according to New Zealand police. A total of 23 people have been rescued from the island – and of those injured, most are suffering from burns.
Johnson believed that most injuries would likely have been due to the force of the explosion. Burns were likely from the steam blasts, she said.
According to Derek Wyman, a senior lecturer at Sydney University, material would have blasted from the volcano at about 1,000 degrees Celsius. “Having seen an image of how close those people were to the crater, it would have been a catastrophic look,” he said. “It would have been an overwhelming site.”