Eology i??Volcanoes&Earthquakei?0 Assignment14


Answer the following questions about the video Cascadia: The Hidden Fire:

What is the Cascadia Subduction Zone?
What two hypotheses are presented in the video about how often earthquakes occur in the Pacific Northwest, and how large these earthquakes are (The Decade of Terrorand The Instant of Terrorhypotheses)? Which hypothesis is more strongly supported by the evidence?
What evidence indicates that a large subduction zone earthquake occurred in the Pacific Northwest about 300 years ago? List at least three lines of evidence.
A large subduction zone earthquake in the Pacific Northwest will likely trigger a large tsunami. How big are the tsunami waves likely to be, and how long might they last?
How long do Slow earthquakesor Silent earthquakeslast? How often do they occur in the Pacific Northwest? How much energy do these earthquakes release?

Compose your work in a word processing program (Microsoft Word, etc.) and submit it to me through Blackboard.