Mount St Helens 40 years on

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On the 18 May 1980, Mt St Helens, a prominent volcano in Washington, USA, exploded. The eruption, which killed 57 people and caused widespread damage to forests and travel infrastructure, remains the largest volcanic event in the contiguous US states for over 100 years. Carefully documented changes in the volcano’s behaviour and appearance over the few months prior to the eruption continue to provide a legacy dataset, which has informed our understanding of volcanic systems worldwide for almost 40 years.

https://www.nature.com/articles/s43017-020-0059-5