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Prior to the ’91 eruption of Mt. Unzen volcanologists setup cameras to capture the party. This is the pyroclastic movement captured in real-time. – radical

Prior to the '91 eruption of Mt. Unzen volcanologists setup cameras to capture the event. This is the pyroclastic flow captured in real-time.

Prior to the ’91 eruption of Mt. Unzen volcanologists setup cameras to capture the party. This is the pyroclastic stream captured in authentic-time. – now