17 Feb 2024

Iceland volcano - research: magma's mammoth flow before eruptions

From Saturday Morning, 8:40 am on 17 February 2024
Lava flows in Iceland after the latest eruption in Grindavík on February 8, 2024.

Lava flows in Iceland after the latest eruption in Grindavík on February 8, 2024. Photo: Gregory De Pascale

In November 2023, a magma dike began to rapidly build below the Sundhnúkur crater chain in southwest Iceland.

It caused widespread damage and evacuated the local population of Grindavík. Since then, the volcanic chain has erupted three times, most recently on February 8, sending lava spilling across the Reykjanes Peninsula. 

New research has revealed Grindavík's 15 kilometre-long magma dike formed in record time, peaking at an unprecedented flow rate of 7400 cubic meters per second.

The authors of the study say it demonstrates serious potential for further volcanic eruptions. 

Dr Gregory De Pascale is an Associate Professor of Geology at the University of Iceland. He spoke to Kim Hill in November, and joins again on Saturday Morning to discuss the latest research. 

Gregory De Pascale

Gregory De Pascale Photo: supplied