Hawaiian eruption

When such an eruption from a central cone is protracted, it can form lightly sloped shield volcanoes, for example Mauna Loa or Skjaldbreiður in Iceland.

[1] The key factors in generating a Hawaiian eruption are basaltic magma and a low percentage of dissolved water (less than one percent).

Basalt relatively richer in sodium and potassium (more alkaline) has erupted at the undersea volcano of Kamaʻehuakanaloa (formerly Lōʻihi) at the extreme southeastern end of the volcanic chain, and these rocks may be typical of early stages in the "evolution" of all Hawaiian islands.

These variations in magma composition have been investigated in great detail, in part to try to understand how mantle plumes may work.

In 2000, two people were found dead near a lava ocean entry from Kīlauea, likely killed by laze.