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Officials warn of explosion danger if lava delta collapses


    On Friday evening, breakouts from the east side of lava flow “61g” provided good viewing for visitors who walked in from the Kalapana viewing area.


    This close-up view of lava entering the eastern Kamokuna ocean entry was taken using a zoom lens from a safe distance.


    The beauty of Kilauea Volcano’s eastern Kamokuna ocean entry can be enjoyed from a safe distance upwind of where lava flows into the sea. The eastern entry site has created a lava delta that is now about 5 acres in size; as this delta grows larger, so does the risk of a sudden collapse.


    Should the lava delta at Kilauea’s Kamokuna ocean entry collapse, fragments of molten lava and blocks of hot rock would be thrown both inland and seaward, potentially impacting people on the cliff above the ocean entry and in the boat in front of the delta.

Geologists and national park officials are warning people not to get too close to the lava entering the ocean because of the danger of a lava delta or bench collapse and explosion.

Lava has been entering the sea since July 26, creating about five acres of new land called a lava delta or a lava bench.

The lava delta is unstable, supported by loose rubble, and could collapse without warning, sending fragments of molten lava and hot rocks to the cliffs above the ocean entry, officials said during a media briefing Tuesday.

In addition, the white plume formed by the interaction of lava and seawater contains hydrochloric acid and tiny particles of volcanic glass, which can irritate the lungs.

Officials urge people hiking to the ocean entry to stay upwind of the plume and far enough away from the cliff to view the scene safely.

There are two ways to hike to the flow — from the end of Chain of Craters Road in the Hawaii Volcanoes National Park and from the county viewing area in Kalapana. Both hikes are long — about 10 to 12 miles round trip and are not for everyone.

Hikers should bring plenty of water and proper footwear and clothing. Bring a flashlight and extra batteries if planning to walk back in the dark.

Hikers are also urged to respect the Hawaiian culture and not to poke the lava with sticks or roast marshmallows or other food on the lava.

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