Stromboli, on its namesake island off Sicily, has been in a state of continuous mild eruption for at least 2,000 years and possibly far longer, with its glowing nighttime explosions visible from passing ships giving it the nickname 'Lighthouse of the Mediterranean' since antiquity — the longest continuously documented volcanic activity of any volcano on Earth. Its remarkably steady, low-intensity 'Strombolian' eruption style, characterized by regular small explosions every few minutes to hours, has even lent its name to that entire class of eruptions in volcanology.
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Stromboli, on its namesake island off Sicily, has been in a state of continuous mild eruption for at least 2,000 years and possibly far longer, with its glowing nighttime explosions visible from passing ships giving it the nickname 'Lighthouse of the Mediterranean' since antiquity — the longest continuously documented volcanic activity of any volcano on Earth. Its remarkably steady, low-intensity 'Strombolian' eruption style, characterized by regular small explosions every few minutes to hours, has even lent its name to that entire class of eruptions in volcanology.
The greatest number of years any volcano has been documented as continuously or near-continuously erupting, based on historical and geological records.
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Limits Registry. LR-LONGEST-CONTINUOUSLY-ACTIVE-VOLCANO. Longest documented continuously active volcano. 2026.