Which scenario describes a “soft storey” building collapse?
- a building is shaken off its first-floor posts, obliterating everything in that first floor space
- two adjacent buildings shake at different frequencies, causing damage in the area where they collide
- a 100-year-old 3-story wooden structure collapses completely
- a building topples over because one side of its foundations sinks into ground softened by liquefaction
- brickwork on the face of a building is shaken off into the street