Take the Pulse of Your Classroom

PDF versionPDF version
Seismogrph monitoring

ERN Item Type: 

  • Classroom Activities


Incorporated Research Institutions for Seismology (IRIS)


Elastic waves that move through the Earth are called seismic waves. Want to study them more closely? SeisMac is a free application that displays the output from the Sudden Motion Sensor in recent Mac laptops as a real-time, three-axis, acceleration graph, or, more commonly, a seismogram. Once your class has received some instruction on seismic waves, the following activity can leverage SeisMac technology to help students understand how a seismometer records ground motions. Consider: What information does a threecomponent seismogram express? How are S and P waves identified on a seismogram? How do seismic waves travel through the Earth?

Grade Level: 


Earth Science Big Ideas: 

Is this tagged to NGSS by the organization?: 


NGSS Crosscutting Concepts: 

NGSS Disciplinary Core Ideas: 

NGSS Science and Engineering Practices: 

NGSS Performance Expectations: