US Disasters Mashup: 54,575 Events from NTSB, NOAA, and USGS

Aviation accidents, maritime disasters, severe storms, and earthquakes unified into a single analyzable format. Combines 54,575 events from three US agencies: NTSB Aviation (aircraft accidents), NTSB Maritime (vessel casualties), NOAA Storm Events (severe weather), USGS Earthquakes (M4.5+ seismic). Unified schema enables cross-domain analysis: temporal patterns, hazard zone mapping, cascading disasters, regional vulnerability. Each record includes event type, date, coordinates, severity, narrative. Sources: NTSB, NOAA NCEI, USGS. Public domain.