Student or Learner
The disastrous Hanshin earthquake in 1995 killed 6,400 people, toppled elevated highways, flattened office blocks and devastated the port area of Kobe. Yet it left the magnificent five-storey pagoda at the Toji temple in nearby Kyoto unscathed, though it levelled a number of buildings in the neighbourhood...
What is the difference between these two? Is 1 British, while 2 American?
In AmE, a five-story building has five levels: the ground (or "first") floor and four more. I'm not sure whether it means the same in BrE.
I am not a teacher.
It depends on what the designers or users of the building choose to call each floor. I used to work in an eight-storey building. There was no "ground floor" - what I would normally call the ground floor was called "Level 1". I worked on the eighth floor which was called, unsurprisingly, "Level 8". Had the designers chosen to name the floors differently, and had used "Ground Floor" for the lowest floor, I would probably have worked on "Floor 7".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.