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This is a lab to help students explore the triangulation method used to determine earthquake epicenters. I created this lab because I wanted a lab that very purposefully made students practice the analysis of seismogram data, calculate pertinent information such as "lag time" from P-wave and S-wave data and use triangulation to determine epicenter location. I wanted a lab that (a) focused on these skills and not other data (while interesting and important could also distract from the learning target) and (b) a lab that looked simple and pleasing to the eye.
What you get:
*The lab which includes four complete sets of earthquake data (data, triangulation map, key). In other words, students will calculate the epicenter location for four different earthquakes.
*A set of student notes which explicitly show, step by step, how to use P and S wave arrival time with a P and S wave curve to calculate epicenter distance AND P and S wave travel time. With these notes I give example data sets for practice and I include a key.
*A suggested lesson plan to follow.
***A word about PRICE: This lab is top notch. I created the data in this lab, calculated all numbers and constructed all maps and keys to represent accurate seismic data in a clear and concise way.