Since Hawaii's Kilauea volcano began a once-in-a-century-scale eruption on May 3, authorities have shut down the plant, removed 60,000 gallons of flammable liquid and deactivated wells that tap into steam and gas deep in the Earth's core.
Keau said she's struggling to explain what happened to her son.
The neighborhood was already under evacuation orders, but emergency officials said they had to go door to door to more than 20 homes to get holdouts to leave, CBS News correspondent Carter Evans reports from Pahoa.
A series of explosions from the Kilauea volcano on the archipelago of Hawaii in the United States on Saturday spewed ash up to 12,000 feet into the air, according to the US Geological Survey.More news: Serena Williams back in the Grand Slam groove in Paris
At least 10 homes were destroyed Sunday due to volcano activity, Civil Defense Administrator Talmadge Magno told a news conference Monday.
The lava breached the property overnight and was within 200 yards of the nearest well, which have been capped to protect against the release of toxic gas should they mix with lava.
"We had one gentleman that had to be kind of rescued".
About 41 homes and 82 structures in total have been destroyed, Magno said.More news: White House to hit China with tech tariffs ahead of trade meeting
Residents close to the active eruption must remain alert to changes in the flow direction, and are advised to prepare for voluntary evacuation should their areas become threatened.
On Sunday afternoon while lava wasn't moving very much in Leilani Estates, two people were out mowing their lawns.
A "vigorous eruption" of lava continues from the fissures in the lower East Rift Zone, as magma continues to be supplied to the lower East Rift Zone. The eruption rate at fissure 8 diminished significantly later in the morning.
Jim Kauahikaua, a geophysicist with the U.S. Geological Survey, said seven other fissures were producing lava Monday afternoon, including two - fissures 17 and 21 - that had high fountains.More news: Rudy Giuliani booed by Yankees fans on his birthday
A fresh eruption from the summit's Halemaumau crater on Monday sent ash nearly 4600m into the air, said Maureen Ballard, a National Weather Service meteorologist in Honolulu. So, instead of carrying the plumes of off-shore, there is "pooling" of sulfur dioxide in some inhabited areas.