An Adelaide family has been reported missing in the wake of the volcanic eruption on White Island / Whakaari.

Gavin Dallow, his wife Lisa Dallow, and her daughter Zoe Hosking, 15, were on a two-week cruise.

Speaking from his Adelaide home, Mr Dallow’s father Brian said the trio had been on a daytrip to White Island.

“We do know they were on the island. That is definite,” he said.

“At the moment, we think they might be in hospital. We’re not sure. We really don’t know anything.”

Zoe Hosking is a Year 9 student at Adelaide’s St Aloysius College (SAC), which this morning issued a statement confirming the family was missing.

“Our thoughts and prayers are with Zoe and her family,” principal Paddy McEvoy said.

“The SAC chapel is open and school counsellors are on hand to support students.

“We know that you share your sadness at this time. We turn to our loving God to give us strength and courage in the days ahead.”