PAHOA, Hawaii (CNN) -- With a mixture of resignation and dread, residents here are watching this gray-and-orange advance, this 2,000-degree river of molten rock.
Each passing hour, lava from Kilauea Volcano is inching closer to their homes in Pahoa on Hawaii's Big Island.
The dark ooze has swallowed up fences, flowed over a cemetery and neared major roads. In some places in this community of about 950 residents, it's chest high.
"Everybody, including myself, is quite nervous," Rod Macland told CNN affiliate KITV-TV. "We don't know. We can't see the future. The flow does what the flow does."
By early Tuesday, the lava was about 70 yards from the closest home and moving in a northeast direction. It was flowing 8 to 11 yards per hour, the Hawaiian Volcano Observatory said.
Hawaii officials haven't issued a mandatory evacuation yet. But many residents in the community have already chosen to leave on their own.
"Most people have vacated," Hawaii County civil defense worker Franchesca Martin-Howe told CNN affiliate KHON-TV. "They have moved out of their homes. There's only a few people left."
Alii Hauanio has started packing his things, including his parents' memorabilia, CNN affiliate KHNL reported. His mom and dad lost their dream Kalapana beach home to lava flow in 1991, and Hauanio never thought he'd see his home meet the same fate, he told the station.
He hopes to watch the lava pass through, if it does.
"To see it, in actuality, I think it might bring closure to know that it's done and turn that page, and we're starting another chapter," Hauanio told KHNL.
The lava flow is expected to displace 900 schoolchildren in the area. Residents who don't expect their homes to be destroyed worry about being cut off.
"A lot of us are loading up on gas, getting generators in case the energy goes out," Mike Hale told CNN. "And we're checking to make sure the Internet stays up."
The Hawaii County Civil Defense Agency has rebuilt two gravel roads to give residents escape routes from the lava flow. Power company crews are installing 70-foot-tall poles with heat resistant protection to raise cables higher off the roads.
"If for some reason someone can't get to our clinic, we will be there with the mobile unit," said Harold Wallace, CEO of Bay Clinic. "There's going to be people who need prescriptions and more."
Smoke a problem
The smoke is a problem for residents, especially those with respiratory conditions.
"It's burning through thick brush, fern," Tim Orr, a U.S. Geological Survey geologist, told CNN affiliate KHNL-TV. "A lot of smoke (is) coming off the front, a lot of cracking noises, methane explosions are going on. So it's a noisy situation out there just from all the burning vegetation."
Some evacuated homes are being targeted by looters, a business owner said.
"Crime is starting to pick up because a lot of people abandoned their houses. Two of my brother-in-laws' houses got ripped off," said Matt Purvis, owner of the Tin Shack Bakery, on Monday.
But the Hawaii County Civil Defense Agency said it has received no reports of looting at evacuated houses or businesses.
'Not going to happen'
Billy Kenoi, the Big Island mayor, said residents must work together.
"As it gets closer, the key is communication with the community, keeping people informed and everybody continue to work around the clock really hard just to minimize as much as possible the impact on the people of Pahoa," he told KHNL.
But many residents are rolling with the punches.
The lava flow is not exactly a surprise, since it started June 27 and has advanced about 13 miles since then. Kilauea is one of the world's most active volcanoes.
"I think it's going to be a little intense at first, a little crazy," resident Geri Tolchin told KITV. "I think people will adjust. Everybody knows what's happening."
Macland said people must plan to rebuild.
"Everybody would wish this lava flow to stop," he told KITV, "but it's not going to happen,"
CNN's Martin Savidge reported from Pahoa, Paul Vercammen from Los Angeles and Ralph Ellis from Atlanta. CNN's Michael Pearson and Steve Almasy also contributed to this report.