Matching Pairs Interm 12-Unit 5: Survival Online version Activity 2 by MD1 UTDA 1 When an earthquake happens... 2 An eruption occurs when... 3 When mud, rock and stones slide down a hill... 4 When there is an... 5 A Hurricane is a... the ground shakes and moves. large storm that begins over the northern Atlantic Ocean. avalanche, a lot of snow slides down a mountain. is called a landslide. a volcano makes an explosion of rock, gas and dust.