Earthquakes
Study questions: faults and earthquakes 1) How are the orientation of a fault and the displacement along it defined (draw sketch)? 2) List and define the three main types of faults. 3) As depth within the earth increases, why does it become more and more difficult for rocks to fail by shear faulting? 4) What type of faulting is dominant in the Bay Area, Why? 5) Where along a strike slip fault are the most favorable places to learn about historical activity on the fault from excavations? Why? 6) What happens when a fault "creeps"? 7) What type of faulting do you expect to see at a mid-ocean ridge? Draw a sketch representing a cross-section across a ridge showing the faulting. 8) Why is it sometimes difficult to map active faults in a region?