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Mauna Loa in Hawaii is the largest active volcano on the planet. Its colossal mass could cause unsuspected dangers : its unstable flanks could collapse into the ocean and cause a mega-tsunami. Gérard Fryer, a geophysicist, devoted his entire life to the study of this unknown phenomenon: by entering the water, this enormous mass of rock forms giant waves, 300 meters high. Other tsunamis caused by earthquakes around the Pacific regularly affect the island’s coast. The volcano’s peak is so high that scientists have settled there to study global warming.
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