Firefighters went door-to-door asking residents of Leilani Estates on the island to leave as lava from the volcano continued to flow, threatening more homes, reported CNN. The plugs protect against the release of gas that could turn toxic when mixed with lava.
Hawaii Army National Guard Major Jeff Hickman describes the advance of lava from vent seven, which advanced 30 yards over the last 24 hours leading up to midday Sunday. About 2,200 acres have been covered in lava since the volcano started erupting. He said there was no indication of the release of the poisonous gas hydrogen sulfide, the greatest fear should lava hit the wells.
The haze, a phenomenon known as "vog" or volcanic smog, "is spreading across Micronesia", the US National Weather Service based in Guam said.More news: Hurricane season 2018 predictions: how bad will we get hit this year?
"Primary concern is sulphur dioxide from the eruption and lava coming on site".
According to Hawaii County Civil Defense, no hydrogen sulfide gas has been detected at the site.
The destructive fury of the erupting Kilauea volcano was unleashed on the Big Island's Leilani Estates housing development, with the number of homes and other structures destroyed leaping to 82 from a previous count of 50, according to the Federal Emergency Management Agency.More news: Significant flooding, water rescues underway in Ellicott City
The three explosions, which began around 12.42am, came during the fourth week of what geologists rank as one of the biggest eruption cycles from the Big Island volcano in a century.
Contingency plans have been made for a possible helicopter evacuation of up to 1,000 residents in a coastal area south of the fissures should their last exit route be blocked by lava or become unsafe due to gaping cracks, officials said.More news: Warriors crush Rockets to force game 7 in WC final