Photo Courtesy: NASA
Unzen is the site of Japan’s most destructive volcanic disaster on record. Following a period of eruptive activity at the volcano in 1792, a landslide was triggered on nearby Mt Mayuyama. This landslide poured into the ocean, generating a massive tsunami over 55m high that wreaked havoc in the nearby area. The landslide and ensuing tsunami caused a vast amount of damage to the coastline and left more than 15,000 dead.