Bubbles in Youngest Toba Tuff melt inclusions reveal pre-eruptive magma vesicularity and perhaps why the eruption was so big

Key Points

• Eruption size is likely influenced by the vesicularity of pre-eruptive magma, changing our understanding of explosive volcanic behavior.
• Inclusions containing bubbles were analyzed, showing significant vesicularity that correlates with eruption magnitude.
• Analysis of melt inclusions in the youngest Toba Tuff provides new insights into volcanic eruption mechanisms.
• Findings underscore the importance of vesicularity in understanding potential volcanic hazards from large eruptions.