The Hunga Tonga-Hunga Ha'apai volcanic eruption was a one-in-1000-year disaster.
"Before the eruption, much of the volcano was above water but now none of it is."
It's been revealed the COVID positive port workers in Tonga visited shops, a kindergarten and went to church before testing positive for COVID-19.
The repair work to the underwater cable will take a few weeks to carry out.
The Tongan Prime Minister said no personnel will be allowed to disembark the ship.
"Everyone is still struggling right now."
Eight people on Nomuka Island were injured, and another six people had minor injuries.
Images show the full scale of the eruption.
It brings New Zealand's Tonga aid funding up to $3 million.