1976 Tangshan earthquake 1997 Pacific hurricane season 2004 Indian Ocean earthquake 2005 Atlantic hurricane season 2005 Kashmir earthquake 2005 Miyagi earthquake Antonine Plague Avalanche Black Death Cascadia Earthquake Cretaceous-Tertiary extinction event Emergency preparedness Good Friday Earthquake Hurricane Andrew Hurricane Floyd Hurricane Hugo Hurricane Iniki Hurricane Katrina Hurricane Nora (1997) Hurricane Pauline Johnstown Flood Krakatoa Mount Vesuvius Napier earthquake Nisqually earthquake Permian-Triassic extinction event Shaanxi Earthquake Supernova Supervolcano Tornado Tunguska event