All of these features should be included on a map. These features are essential for understanding and using the map correctly. Maps are divided into a series of squares known as a grid. These grids ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The familiar Richter scale (which is not a physical device but rather a mathematical formula) is ...

The Richter scale rates the amount of energy released from a single earthquake, letting us know the magnitude of the disaster. A seismograph is what scientists use to actually measure the earthquake ...