An Auckland courtroom has seen confronting footage of tourists running for their lives during the 2019 eruption of Whakaari-White Island.

A coronial inquest is looking into the disaster that killed 22 people and injured 25 - almost all in tour groups.

Newstalk ZB reporter Jordan Dunn says this inquest will cover an 'extensive' list of factors.

"They're going to be looking at how emergency responders did actually respond, and who was actually in charge with that emergency response and who was supposed to be centring it and who was supposed to be focusing that communication." 

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