Pumice strewn across Coast beaches was caused by an underwater volcano eruption – about 18 months ago

The day an underwater volcano almost wiped out a nation

Maritime Impacts of Volcanic Eruptions: A Guide for the Prudent Mariner

Pacific Ocean pumice raft floating towards Australia's Great

Clean-up of shores covered with pumice stones due to underwater volcanic eruption underway

Enormous Underwater Volcanic Eruption Creates Waves of Pumice Off

Tongan volcano pumice expected to wash up on Townsville beaches this year - ABC News

Tonga's underwater volcano is part of a chain of 50 extending to

New island forms near Japan after undersea volcano erupts

The VEI-5 millennium eruption of Hunga Tonga

Types of volcanic eruptions - Wikipedia

Enormous pumice island drifts towards Australia after underwater

Underwater Volcano Erupts, Setting Off Tsunami Warnings Across Pacific - The New York Times