5. Typhoon Nina in China (August 4, 1975)
Typhoon Nina, after making landfall over Taiwan, collapsed 3000 houses, moved to China, causing heavy rain, destroying 62 dams. Dam failure combined with heavy rain caused 12,000 square kilometers of land to be flooded. An estimated 229,000 people died, 11 million people were affected, and property damage amounted to $1.2 billion.
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