Week 5 Objectives

G148 Spring 2009

1)  What type and depth of earthquakes are associated with subduction zones?

2)  What is the Benioff Zone and what is meant by a seismic gap

3)  What is a slow quake and what is the significance with regards to stress

4)  Understand the basic methods of monitoring earthquakes

6)  Understand the basic methods of monitoring earthquakes

7)  How accurate is prediction of earthquakes and be able to discuss long term vs. short term forecasting.

8)  What is the Basin and Range, what caused the faults that we see here, and what types of faults are found here

9)  Why is the Wasatch Fault such a major problem now compared to 100 years ago?

10)  Why do earthquakes occur away from plate boundaries?

11)  Be able to give examples of seismically active areas that are not located at plate boundaries

12)  What is the probably cause of the earthquake activity in New Madrid?

13)  What type of earthquakes occur in the NW?

14)  Be able to discuss the research and evidence that supports the idea that WA and OR do experience great subduction quakes

                Off set                                                                      Turbidites

                Downdrop of coast                                                   Landslides      

                Tsunami deposits                                                      Drowned forests

15)  What evidence supports the idea of a total rupture of the subduction zone?  What evidence supports a partial rupture?

16)  Be able to talk about Seattle and Portland with regards to the faults and how active they are in each region