All volcanoes · Solomon Islands Volcanoes in Solomon Islands 3 volcanoes in Solomon Islands. Data from Wikidata and Wikipedia. Kavachi Kavachi is one of the most active submarine volcanoes in the south-west Pacific Ocean. Loc… Mount Popomanaseu Mount Popomanaseu is a volcanic mountain and the highest mountain in the Solomon Islands. … Nonda (volcano) Nonda is a stratovolcano on the island of Vella Lavella.…