An explosion at the volcano's summit yesterday afternoon caused a thick ash plume to reach 10,000 feet above sea level.
The current eruption burst through the ground more than a month ago in the Leilani Estates neighborhood, where fissures ripped open and lava destroyed homes and wiped out several square miles of buildings and property.
He told reporters on Monday that temblors are almost continuous at the summit and that gas emissions remain "very high".
"Lava continues to enter the ocean along a broad front in Kapoho Bay and the Vacationland area and it continues to creep north of what remains of Kapoho Beach Lots", USGS geologist Janet Babb told Associated Press.
While the new land is owned by the state, people that have private property in the affected areas will still own their land, although it will need to be reassessed once the lava stops flowing.
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Also present at the press conference, Hawaii Governor David Ige said state will allocate 12 million US dollars to help respond to the eruption, covering expenses ranging from overtime work to food and equipment.
The lava destroyed over 600 houses in Hawaii and poured in low-laying neighbourhoods of Hawaii. About 100 structures had been destroyed before the latest eruption, but about 500 homes in the communities of Kapoho Beach Lots and Vacationland were in the direct path of the lava.
A live webcam stationed at the summit shows volcanic gas and ash pouring from the crater vent.
So too have airborne volcanic glass fibers, called "Pele's Hair", wispy strands carried aloft by the wind from lava fountains and named for the volcanic goddess of Hawaiian myth.
In addition to property damage, the eruption has severed highways, knocked out power and telephone services and shut down a geothermal plant that usually provides about a quarter of the island's power.