Update 2018-07-17: According to the latest reports, a total of 49 passengers were on board the boat when the lava explosion occurred. A rock about the size of a basketball hit through the ceiling of the boat and injured 23 people, one woman was seriously injured. She and three other people were taken to hospital.
Hawaii News Now
2018-07-17: On Monday (16 July) multiple passengers of a tourist boat were injured in an incident off the coast of Hawaii near the active entry point of the lava that is flowing into the sea in the course of the current eruption. The boat was near this sea entrance when an explosion occurred and lava and rocks were hurled in the direction of the boat.
Travellers should follow instructions by local authorities.
AFP, dpa, Reuters