How do earthquakes form? In this Earthquakes title, readers will learn the answer to that question along with its causes, processes, effects, and why it is important. They will also be introduced to Charles Richter, a seismologist. Bright, full-page photos fill the book, with easy-to-read text. Aligned to Common Core Standards and correlated to state standards. Applied to STEM Concepts of Learning Principles. Sandcastle is an imprint of Abdo Publishing, a division of ABDO.