Today’s objective: To learn how geologists determine the epicenter of an earthquake. The process is remarkably easy and after viewing some of the specifics in a brief, 7-minute video clip, students then worked in cooperative pairs to complete a lab utilizing data from various cities seismograph records to determine the epicenter of an earthquake. Specifically, students worked to determine how far the earthquake occurred from each of three cities utilizing seismograph records. After determining the distance, circles were scribed around each of the three cities. The location in which the three circles intersected is defined as the epicenter.

The earthquake lab was largely completed in class with most groups turning it in prior to the end of the hour. For those who have not turned it in, it is due at the start of tomorrow’s class period.

Homework: Earthquake lab due at the start of tomorrow’s class.