Lava from Hawaii's erupting Kilauea volcano threatened to cover more wells at a geothermal power station on Monday as a fresh blast from the crater sent an ash plume nearly 15,000 feet into the sky, officials said.
"Lava flow from Fissures 7 and 21 crossed into PGV property overnight and has now covered one well that was successfully plugged".
As of Friday, the oozing lava had destroyed 82 structures on the Big Island, Hawaii County Civil Defense Administrator Talmadge Magno said.
The Kilauea volcano on Big Island of Hawaii has been in the news for a couple of months.
It added that the wells "are stable and secure", but lava has never engulfed a geothermal plant anywhere in the world and the potential threat is untested.
County officials said there was no release of any risky hydrogen sulfide gas, as some feared might happen if lava breached the well shafts that tap steam and hot water several thousand feet down to make electricity through turbines.
The geothermal plant has been already shut down and 60,000 gallons of flammable liquid at the start of the volcanic activity has been removed.
About 2,000 people were ordered to evacuate from the rural communities where the lava fissures opened.
So far the lava has covered almost 3.5 miles of land, cutting off access to dozens of homes.
We're told the valves on the top of the wells can easily withstand 200-degree lava.
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.
Magma is draining underground from a sinking lava lake at Kilauea's 4,091-foot (1,247-meter) summit before flowing around 25 miles (40 km) east and bursting from giant cracks, with two flows reaching the ocean just over three miles (5 km) distant. "Also due to preventative measures, neither well is expected to release any hydrogen sulfide", it said.