Earth Science

Room 6-128

Mr. Becker

Analyzing Seismic Waves

P & S Waves

• x. Do P & S Wave Demonstration: • x. Students are waves and stations.• x. P wave is two steps per second. • x. S wave is one step per second.• x. Stations record time for waves to arrive.

• x. Develop lag time concept.

• x. 1 s lag time is 12.5 km. (12.5 km/s)

Wave Motion

Rayleigh Waves

Types of Earthquake Waves

Types of Earthquake Waves

Seismic Waves

• Seismic Waves Simulation 3D

P S Arrival Times

Seismogram

Earthquake Location

• Evolving Earth: Plate Tectonics• Includes Earthquake Location Lesson:• http://www.globalchange.umich.edu/globalchange1/current/lectures/evolving_earth/evolving_earth.html

• Earthquakes from Past 24 Hours• Recent Earthquakes:• http://aslwww.cr.usgs.gov/Seismic_Data/telemetry_data/map_sta_eq.shtml

• Seismograms• Seismic Data Page:• http://aslwww.cr.usgs.gov/Seismic_Data/heli2.shtml

• ZZZ