Earthquakes cause building to fall and injure or kill people.
So,engineers and architects are trying to make building safer. Skyscraper are built so that they sway but don't fall. When earthquake strike. Some building are put on rollers while other have steel beams anchored into the ground. Builders also use stronger and more flexible material. A new idea is to put heavy weight in building so that if they move one way, the weight moves the other way to help keeping the building from toppling.