Hawaii volcanic ‘lava bomb’ hits tour boat, 23 injured
A blob of hot volcanic lava struck an ocean tour boat just off the Big Island of Hawaii on Monday, injuring nearly two dozen people in the worst casualty incident to date from the ongoing eruption of the Kilauea Volcano.
One woman’s leg was broken when the “lava bomb,” which spattered out of the water with explosive force as molten rock poured into the ocean, crashed through the roof of the boat into the vessel’s seating area, said Hawaii County Fire Department Battalion Chief Darwin Okinaka.
The boat was able to return to its port in Hilo less than an hour later, and three of the injured were taken to a local hospital by ambulance, Mr Okinaka said. Nine or 10 others with less severe injuries were driven to the hospital by private vehicle, and 10 more people were treated by paramedics at the port, he told Reuters.
A civil defence spokeswoman, Kelly Wooten, put the total number of injuries at 23.
“It was an explosion, basically,” said Janet Snyder, a spokeswoman for the county mayor, told the Tribune Herald newspaper. “It punctured a hole right through the roof of the boat.” She described the boat as “covered with lava.” Officials for the company were not immediately available for comment.
State and local police and the DLNR were investigating the incident, which occurred shortly after dawn near the eastern-most edge of the Big Island, where lava from the 10-week-old Kilauea eruption has been flowing into the Pacific since early June.
The boat’s distance from shore and from the site of the lava explosion was not immediately known, fire and civil defence authorities said.
The US Geological Survey said explosions of varying sizes happen whenever 2,000-degree Fahrenheit (1,093-degree Celsius) lava enters much colder seawater.
But the large explosion that blasted lava onto the tour boat could also have to something to do with the offshore topography and the amount of molten rock currently entering the ocean in that area.
USGS Geologist Janet Babb said lava mixing with water is always explosive, but there are also times that molten rock can become encrusted underwater, and when that crust breaks the interaction it can cause huge steam explosions that can hurl debris hundreds of metres into the air.
The volume of lava now entering the sea is much higher than in previous flows, Babb said, and because the ocean is relatively shallow in that area, the lava has more opportunity to build up and explode near the surface.
Two entire housing developments consisting of hundreds of dwellings were destroyed several weeks ago as lava spewing from a fissure on the slope of the volcano inundated the seaside Kapoho area in the vicinity of Monday’s accident. Hundreds more homes have been swallowed closer to the eruption site itself.
The property losses marked the most destructive eruption of Kilauea in modern times, but no fatalities have been reported.
The most serious previous injury was of a man whose leg was shattered in May when he was hit by molten lava ejected by a volcanic fissure while he was standing on the third-floor balcony of his home about 200 yards from a flow in the Pahoa area.
The passenger whose leg was fractured on the boat on Monday, a woman in her 20s, was listed in serious condition, Okinaka said. The other tourists hurt in the incident suffered minor burns and other more superficial injuries he said.
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