1556 Shaanxi earthquake killed 830,000 people in Yaodongs caves. 1920 Haiyuan earthquake in China killed over 200,000 people. 526 Antioch earthquake destroyed city and killed 250,000 people. 1976 Tangshan earthquake killed 240,000-500,000 people. 2010 Haiti earthquake killed 220,000-316,000 people
Typhoons form between 180° and 100°E in Northern Hemisphere. Typhoon season runs from April to November, most likely July-September. About 18 countries face typhoon threats each year