The brother of a man who was killed in the Whakaari White Island eruption says he hopes tours on the island will be able to resume soon.
Mark Inman says a new warning system which can forecast future eruptions, would be good to use alongside other alert levels already in place.
The scientists say the system is ready for deployment, but a volcanologist at GNS Science says while the research is promising, it's still far off from being operational.
Harry Lock reports.