Scientists are studying the risk posed to the mainland by two of New Zealand's offshore volcanoes: Tuhua/Mayor Island and Whakaari/White Island (pictured). Photo: SuppliedScientists are taking a fresh look at New Zealand's risk from island volcanoes and underwater landslides, in a series of new projects focused on some of our lesser-known tsunami-makers. Along with eruption effects like ash, his team also wanted to explore how big blows might trigger large tsunamis. "The type of pebble found means they could only have been transported from relatively deep offshore which requires a fairly large tsunami." "This is of interest, because we'd like to know how much warning time we are likely to get of large tsunamis."

Source: Otago Daily Times September 19, 2021 07:18 UTC