·         Galactic

·         Solar System’s

··        Solar

·         Solar - Terrestrial

Terrestrial:

·         Natural

·         Biologic

·         Climatic

·         Geologic

·         Slope Processes

·         Anthropogenic

·         Economic Disasters:

·         Sharp drop

·         Acute crisis

·         Depression

·         Stagnation at high level

·         Sociologic Disasters:

·         Civil Unrest

·         Terrorism

·         Revolutions

·         Wars

·        Sources & Types of  Technogenic Disasters:

·         Contamination

·         Industry

·         Radioactive

·         Transportation

·         Information

·         Sources & Types of Mixed Natural & Technogenic Disasters:

·         Construction

·         Mining

·         Fire

·         Ocean, Reservoirs