Relier Pairs Natural disasters unit 4Version en ligne vocabulary unit 4 par Javi Alejandra 1 A drought ocurrs when... 2 A tornado is... 3 A tsunami... 4 Hurricanes happen in the... 5 Earthquakes are... 6 Blizzard... is a series of enormous waves created by an underwater disturbance usually associated with earthquakes occurring below or near the ocean Atlantic Ocean, whereas typhoons happen in the Pacific. violent shakings of the Earth's crust that may cause destruction to buildings. there is a long period with little or no rain. is a severe snowstorm with high winds and low visibility. a windstorm occurring over land.