Написать определения к (( 1) earthquake it's 2) volcano it's 3) hurricane it's 4) avalanche it's

1) Earthquake it's when a sudden movement of the Earth's surface, often causing severe damage.
2) Volcano it's when a mountain with a large hole at the top which sometimes explodes and produces hot, melted rock and smoke.
3) Hurricane it's when a violent storm with very strong winds.
4) Avalanche it's when a large amount of snow that falls down the side of a mountain.

Землетрясения 1) это когда...2) Вулкан это, когда...3) ураган это когда...4) лавина это когда...