Abstract
Analysis of the frequency‐size relationship of explosive volcanic eruptions for the past 2000 years reveals that the time‐averaged eruptive mass flux of tephra from subaerial explosive eruptions is 3×104 kg s−1. This mass flux corresponds to a thermal energy release of 4×1010 W. Half of the long‐term (>10³ year) mass and thermal energy release from explosive volcanic eruptions is accounted for by eruptions of >10 km³ of tephra.
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