Fresh drinking water is an ongoing worry for those in Vanuatu following yesterday's 7.3 magnitude earthquake. 

Early reports estimate hundreds are injured and more than a dozen people have died.

New Zealand search and rescue teams, equipment and supplies are currently on their way.

The airport is only open to humanitarian assistance - and the port is out of action.

Vanuatu-based journalist Dan McGarry says power is out and water's being restored very slowly. 

"We lost two large-capacity water tanks on the hills just outside of town, so water supply is going to be a continuing concern."

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