| GEOLOGIC | METEOROLOGIC | OCEANOGRAPHIC |
| Volcanic Processes | Hurricanes | Tsunami |
| Earthquakes | Tornadoes | Storm Surge |
Floods |
Lightning |
Sealevel Rise |
| Landslides | Hailstorms | Submarine Slides |
| Subsidence | Drought | Salt Intrusion |
| Other Geologic | Other Meteorologic | Other Oceanographic |
| first version: 19990723 ben,rafi,maxine; latest version 20030611 rafi,kelly; |
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