An explosion caused by lava oozing into the ocean has sent molten rock crashing through the roof of a sightseeing boat off Hawaii’s Big Island, injuring 23 people.

The “lava bomb,” which burst from the water near the boat as molten rock poured into the ocean, landed on the roof of the vessel and crashed into the seating area, said Hawaii County Fire Department Battalion chief, Darwin Okinaka. A woman in her 20s was in serious condition with a broken thigh bone, the department said. Three others were in stable condition at a hospital with unspecified injuries. The rest of the passengers suffered burns, scrapes and other superficial injuries.(theguardian)…[+]