EARTHSC 2GG3 Lecture Notes - Lecture 3: Seismic Gap, Directivity, Nuclear Explosion
29 Apr 2016
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A fault is when you have a break in the rock, and some sort of displacement. The rocks moving past each other cause some kind of strain/friction. When stress on rocks exceeds their strength, the resulting rupture produces seismic waves. North-american plate plates slide past each other, that makes vancouver the best shot to have a very large earthquake. Vancouver is in, by far, the worst position for an earthquake. Three types of dip-slip faults based on which way the bounding earth materials move. Walls on an incline are defined as. If you take away the foot wall block, the hanging block will fall it is dependent on it to stay up. The hanging wall has moved downward relative to the footwall block. What happens when things are being pulled apart (the hanging wall will fall down) The hanging wall has moved up relative to the foot wall block.
