The lava flow emerged from a vent in June and until recently had been slowly weaving through uninhabited forest and pastureland.
Jeff and Denise Lagrimas packed up to leave for a town 14 miles (22 kilometers) away. The flow is expected to slither past properties across the street from their home as it works its way toward the ocean, about 6 miles (9 kilometers) away. They decided not to stay and see if that happens or if the lava burns their home.
Scientists from the Hawaiian Volcano Observatory who are walking alongside the lava reported its leading edge was 240 yards (220 meters) from Pahoa Village Road, which goes through a commercial hub of the Big Island's sprawling and isolated Puna district.