Cracks on road lanes began spew lava Thursday afternoon at the eastern end of Big Island.
Activity at the Puu Oo valve on the Hawaii Kilauea volcano indicated an outbreak last week.
Similar activity was followed by volcanic eruptions, researchers said.
Evacuations have been ordered in Leilani Estates on the eastern side of Hawaii Big Island after the lava has begun pushing into the air close to the community.
"Hawaii County Civil Defense urges residents of the Puna community, home to about 10,000 residents, to come out now", according to Hawaii News Now .
Hawaii County spokesman Janet Snyder told the Associated Press that "Red lava occurred on Mohala Street in the underground part of Leilani Estates. The county orders evacuations for homes from Luana Street to Pohohiki Road."
Several roads in the area have been closed by the Hawaii County Civil Defense.
Several earthquakes and collapse of a crater floor at the Puu Oo valve on the Hawaii Kilauea volcano have shown that the Kilauea volcano wakes up since Monday.
Several 3.0 magnitudes or larger earthquakes shook on the big island on Thursday, according to the U.S. geological survey, including a magnitude 5.0 magnitude late Thursday morning. USGS and residents on the eastern side of the island reported a short-lived ash plum shortly after the earthquake 5.0.
"Enhanced earthquake activity continues in the Kilauea Volcano East Rift Zone area from Highway 130 East toward Kapoho", according to the Hawaiian Volcano Observatory on Thursday morning. Lava flow does not seem to threaten any communities according to USGS.
Several cracks were found on Wednesday in Leilani Estates on the Big Island, but steam and ash did not blow out of the cracks until Thursday afternoon.
Previous outbreaks followed similar activity in the area, told USGS geologist Janet Babb Associated Press. The observatory issued a warning about volcanic activity in mid-April when the Puu Oo valve was blown up and pressed.
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"We knew the change was running and we've seen this before, and so we've been waiting for what looked like what Anything that would happen, "said Babb. "It happened yesterday afternoon."
When the earthquakes and collapse occurred and the pressure in the Puu Oo valve was released, a "intrusion" of lava was sent to a new area of the volcano and spread throughout the night.  "Magma has now migrated to a lower part of the East Rift Zone," says Babb. "The reason is that the intrusion migrated about 10 miles down in the area where the freeway 130 is."
On April 23, 2018, a photo of the US Geological Survey was presented, a helicopter view of the Kilauea Volcano's Halemaumau crater shows the extent of the lava lake's largest overflow (Hawaii Gray) in Hawaii Volcano National Park on Hawaii Big Island.
There are residential areas in the area on Big Island and Highway 130 leads to a popular access point where people can walk or cycle into the lava area.
The Hawaii County Civil Defense Agency sent out an alert Tuesday morning warning residents in the area to monitor the situation and be prepared for the possibility of a new lava flow.
Talent Kanani Aton said the agency "plans ahead of a worst case scenario" by reviewing emergency plans and overseeing the activities associated with USGS officials.
All public access from the island's Puna district near Kalapana has been closed and visitors have been warned to stay away at outbreaks. Private excursions, including boat and hiking tours, have also been suspended.
"It has been closed due to the possibility of outbreaks and security being set up to ensure that no unauthorized persons come in," said Aton, adding there from 500 to 2000 people visiting the site every day. "It is important to note that although there is increased seismic activity in the area, the size is not large enough to cause concern for the tsunami."
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Geologists flew across the area and observed a layer of red ash covering the ground near the Puu Oo valve. The ashes spread throughout the area when the crater floor collapsed.
Most of Kilauea's activities have been non-existent, but an outbreak of 1924 reflected ashes and 10 tons of stones into the sky, leaving a man dead.
Puu Oo 1983 eruption resulted in lava fountains rising above 1500 meters high. For decades, the lava flow has buried dozens of square kilometers (kilometers) of land and destroyed many homes.
In 2008, Kilauea's peak after a series of small earthquakes opened a humble lava and rocked over 75 hectares of the mountain, causing harm to a nearby visitor to be overlooked.