ABC News September 30, 2021

Lava continues to flow out of Hawaii's Kīlauea volcano, one of the most active in the world

WATCH: Lava continues to flow out of Hawaii's Kīlauea volcano

Lava is continuing to ooze out of the Kīlauea volcano on Hawaii's Big Island a day after it began erupting.

Scientists at the U.S. Geological Survey's Hawaiian Volcano Observatory detected a glow around 3:20 p.m. Wednesday at the summit of the volcano's caldera, a cauldron-shaped hollow that forms after a large volume of magma erupts in a short period of time.

USGS via Reuters
A rising lava lake is seen within Halema'uma'u crater during the eruption of Kilauea volcano in Hawaii National Park, Sept. 29, 2021.

By 3:42 p.m., the eruption had sparked within the Halema'uma'u crater, and webcam video of the activity showed fissures at the base of the crater generating rivers of lava, the USGS reported when changing its alert level from "watch" to "warning" Wednesday afternoon.

MORE: Kilauea volcano erupts on Hawaii's Big Island

The lava lake that the new lava is flowing into had been cooling since May, when another series of eruptions had ceased.

USGS via Reuters
A rising lava lake is seen within Halema'uma'u crater during the eruption of Kilauea volcano in Hawaii National Park, Sept. 29, 2021.

As the eruption continued through Wednesday evening, a line of lava fountains erupted on the crater floor, causing tephra, a material produced by the eruption, to fall downwind, according to the USHS. A new fissure also opened up on the West wall of the crater around 4:40 p.m., with lava continuing to flow overnight.

MORE: Man injured after falling from cliff into caldera of Kilauea volcano in Hawaii

Kilauea, located within Hawaii Volcanoes National Park, is one of five volcanoes on the Big Island and is one of the most active volcanoes in the world, according to the USGS.

USGS via Reuters
A rising lava lake is seen within Halema'uma'u crater during the eruption of Kilauea volcano in Hawaii National Park, Sept. 29, 2021.

In 2018, a series of eruptions from Kilauea wreaked havoc on nearby communities, prompting widespread evacuations and destroying hundreds of homes in the direct path of the rivers of lava.

MORE: Kilauea volcano in Hawaii has destroyed at least 600 homes: Officials

The eruption was so extensive that fountains of lava were feeding into the Pacific Ocean after completely filling Kapoho Bay.