Today I will talk about natural disasters espesially about earthquake, avalanche and tsunami.
There are many types of natural disasters. Natural disasters can harm people's lives, economy. In 2012 there were 905 disasters.
Earthquake- is a sudden release in the Earths crust that creates seismic waves. There are 5 types of earthquake- rupture dynamic, tidal forces, earthquake clusters, aftershocks, earthquake storms.
Avalanche- is a rapid flow of snow from surface. There are 3 types of avalanshe- slab avalanshe, powder snow avalanshe and wet snow avalanshe.
Tsunami- is an seismic wave. Tsunami waves are stronger than normal sea waves.
There are many types of natural disasters. Natural disasters can harm people's lives, economy. In 2012 there were 905 disasters.
Earthquake- is a sudden release in the Earths crust that creates seismic waves. There are 5 types of earthquake- rupture dynamic, tidal forces, earthquake clusters, aftershocks, earthquake storms.
Avalanche- is a rapid flow of snow from surface. There are 3 types of avalanshe- slab avalanshe, powder snow avalanshe and wet snow avalanshe.
Tsunami- is an seismic wave. Tsunami waves are stronger than normal sea waves.








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