One day, Ren's mom took her to see a city near the coast called Trujillo. "This area has experienced a lot of seismic hazards," she explained. "The subduction zone offshore produces huge earthquakes that spawn destructive tsunamis."
Ren saw that much of Trujillo was being rebuilt after recent quakes. "It must be scary living so close to the plate boundary," she said. Her mom replied, "Yes, but by studying seismic activity patterns and making preparations, people can reduce risks."