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Click image or link here to visit Engineer.info website Choice B |
Click image or link here to visit Engineering Central |
Click image or link to visit Engineer.net |
Sudden natural | Long-term natural | Sudden human-made | Long-term human-made |
Avalanche
Cold wave
Earthquake Aftershock Floods
Flash flood Dam collapse
Volcanic eruption Glowing avalanche Heat wave
High wind cyclone Storm Hail Sand storm Storm surges Thunder storm
Tropical storm Tornado Insect infestation Landslide Earth flow Power shortage Tsunami and tidal wave
| Epidemics
Drought
Desertification Famine Food shortage or crop failure
| Structural collapse
Building collapse
Mine collapse or cave-in Air disaster Land disaster
Sea disaster Industrial/technological accident Explosions Chemical explosions
Nuclear explosion or thermonuclear explosions Mine explosions
Pollution Acid rain Chemical pollution Atmosphere pollution Chlorofluoro-carbons (CFCs) Oil pollution Fires Forest/grassland fire
| National (civil strife, civil war)
International (war-like encounters)
Displaced population Displaced persons Refugees
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