Iceland's volcano eruptions may last decades

Scientists predict from geochemical data that Iceland is entering a new volcanic era that will last for decades, possibly centuries. Under an hour's drive from the country's capital city, the ongoing eruptions pose considerable risks for economic disruption, and they leave evacuated communities uncertain of a possible return.

Under an hour's drive from the island's capital city Reykjavík, the eruptions pose considerable risks for economic disruption, and they leave evacuated communities uncertain of a possible return. Using geochemical and seismic data, the researchers investigated whether the magma of the initial eruptions from one volcano in the peninsula from 2021 to 2023 came from the same source as the magma in the recent eruptions of a different volcano to the west.

However, that storage is ultimately fed by the melting rock deeper in the mantle, which can cause eruptions that last decades, with hundreds of square miles of magma surfacing, Bindeman said. Iceland's hotspot also will have no problem fountaining that flow, he said.

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