Recent studies indicate that volcanoes previously deemed extinct may not be as dormant as believed, potentially accumulating magma for future eruptions. This revelation follows the unexpected eruption of a Greek volcano after 100,000 years of silence, prompting scientists to reconsider the classification of such volcanoes.
Greece's Methana serves as a critical example, demonstrating that volcanoes can remain inactive for extended periods before reawakening. This raises questions about the volcanic activity monitoring and the implications for regions surrounding these 'extinct' volcanoes.