vibration from underground movement along a fault plane

A cataclysm resulting from a destructive sea wave

A violently destructive windstorm occurring over land

The rising of a body of water and its overflowing onto land

Rock that in its molten form issues from volcanos

A shortage of rainfall

A storm resulting from strong rising air currents

The sliding down of a mass of earth or rock from a mountain or cliff

A slide of large masses of snow, ice and mud down a mountain

Fire that starts, usually by itself, in a wild area such as a forest, and spreads rapidly, causing great damage

A storm during which hail falls

A spring that discharges hot water and steam

A dark grey cloud bearing rain

Ground that is permanently frozen