which type of volcanic eruption exhibits explosion or fountain of basaltic lava from a single vent

Because it is typical of Hawaiian volcanoes, a Hawaiian eruption is a particular kind of volcanic eruption in which lava flows out the vent in a relatively calm, low-level explosion. Typically, these are effusive eruptions with basaltic magmas that are hot near the vent, low viscous, and low in gases. Volcanic ash is only occasionally produced. This kind of eruption can happen close to subduction zones and rift zones, although it most frequently happens at hotspot volcanoes like Kilauea and Iceland. On Surtsey from 1964 to 1967, molten lava flowed from the crater to the sea as another example of Hawaiian eruptions.

Hawaiian eruptions can happen along fissure vents, as they did during the 1950 eruption of Mauna Loa Volcano, or at a central vent, as they did in 1959 during the Kilauea Iki Crater eruption, which produced a lava fountain 580 metres high and constructed a 38-meter cone known as Pu'u Puai. Lava spurts from a fissure on the rift zone of the volcano feed lava streams that flow downslope during fissure-type eruptions. Lava fountains can erupt from core vent eruptions to a height of 300 metres or higher.

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