How do earthquakes only shake one area? by Maya

Well, I found out that a earthquake is caused when two tectonic plates slide past each other.  The reason is because you can't take the middle of a plate and slid it with another.  Some places where earthquakes are a big problem are Alaska, California, Hawaii, Nevada, and Washington. California, San Francisco 1906 there was a huge earthquake! About 3,000 people died! Why was that earthquake caused? That earthquake was caused when the Pacific plate slid past the North American plate. The plates can move by coming close together, pulling apart, and sliding past each other. The edge of a plate is called a plate boundaries, that's where earthquakes, mountains, and all that cool stuff happen. That's why we don't get a lot of earthquakes, we are in dead center!