A Greek volcano slept for over 100,000 years, yet kept growing.
Researchers dated more than 1,250 tiny zircon crystals from Methana, an active volcano near Athens in Greece, and found that during a quiet spell of more than 100,000 years, magma was still building up beneath it. The finding suggests some volcanoes thought to be extinct may not be.
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Science Advances (Popa et al., 2026) · Science News
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