This activity introduces the Active Reading approach for teaching students how to analyze visual representations in science texts. Students will annotate the text and visual representations in the article, Disaster in Japan: Earthquake and Tsunami, which includes several diagrams of how powerful earthquakes at subduction zones can cause tsunamis. Scientists often present their thinking visually, so it is critical that students gain the ability to analyze ideas presented in this manner. The article reinforces concepts and introduces new ideas about tectonic plates and helps students see how humans are affected by geological patterns. The suggested amount of time for completion of this activity is 2 class periods.