Station 1:

Step 1: Locating the earthquake: Measure the SP interval for three seismographs. Multiply that interval by 9.7 km to get the distance.

Step 2: They will then use that distance to find the epicenter. Use the scale map on page one and determine the opening of the compass to correspond to the distance from step 1.

Step 3: Use a nomogram to find the magnitude of each seismogram.

Station 2:

This station requires the students to graph the event times of past San Andreas at Pallet Creek. They will use the graph and the data table to answer questions related to San Andreas fault movement and earthquake prediction.

Station 3: Determining time lag between P and S waves based on the difference in seconds. The students will be calculated time lag by subtracting event times and using the formula of Time lag in seconds/5Seconds X 60 km. This will given them the distance.

Those students who finish all the station first will get 5 points of extra credit and will be my assistants for the rest of the class.

**Power point for step by step instructions:**

Links for the Lab and other earthquake labs:

Animations for that are helpful for the Lab

This a computer version of the paper lab

This is the best lab I have found for earthquakes and worth the lab time