Slide 1 Interpreting Seismograms Slide 2 Wave Types P waves (compression waves) Fastest S waves (transverse waves) Mid Speed Surface waves Slowest, may not reach far from…

Slide 1 Question: Explain how the study of plate tectonics helps us to understand the occurrence of earthquakes Slide 2 Answer Layout: Earthquakes are caused by the movement…

Slide 1 Earthquakes  What they are  Where they occur  How fast they travel  How to locate their centers  Their strength Slide 2 The Dynamic Crust – Earthquakes…

VII. Earthquakes Introduction Source of seismic energy Propagation of seismic energy Recording earthquakes Magnitude scales San Francisco, 1906 Building design could not…

Earthquakes Part 2 Earthquakes Part 2 Remember- earthquakes usually occur along faults in the earthâs lithosphere. (San Andreas Fault) - Normal Fault - Reverse Fault - Strike…

Earthquakes within the Cascadia Region Seismic Risk Acceptable Risk: Taking into account the tradeoffs involving cost to the individual, cost to the society, amount of safety…

Earthquakes within the Cascadia Region Risk = Hazard x Vulnerability / Capabilities The Earthquake hazard (primary and secondary) The impact (whatâs vulnerable) Manmade…