Hawaii: Ongoing eruptions on the Big Island create a (tiny) new island

Ongoing eruptions on the Big Island create a (tiny) new island

The Hawaiian Islands has a (tiny) new island. At least for now.

In a flight Friday morning, geologists confirmed that a small island has formed off Kapoho, where lava flows are cascading into the sea.

The Hawaiian Volcano Observatory estimated that the island is about 20 to 30 feet in diameter and just a few meters offshore.

It formed at the northernmost part of the ocean entry and is “oozing lava similar to the lava oozing from the broad flow front along the coastline.”

The observatory said that the tiny island is likely part of the flow from fissure no. 8 that’s entering the ocean.

It could also be a “submarine tumulus,” which built up underwater and emerged above sea level.

A tumulus is created when the upward pressure of slow-moving molten lava within a flow swells or pushes the overlying crust upward. The surfaces of pahoehoe flows on flat or gentle slopes often exhibit elliptical, domed structures called tumuli.

Ongoing eruptions on the Big Island create a (tiny) new island


Mary Greeley News
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