Earthquakes along the San Andreas fault zone,for example,are repetitive-they reoccur in roughly the same regions over and over again-separated by decades or centuries because ________.

Question

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Earthquakes occur along the San Andreas fault zone because stress continues to build up over time and eventually overcomes the friction between the two sides of the fault, causing an earthquake. This process then starts over again, leading to repetitive earthquake activity in the same regions separated by decades or centuries. Option A is incorrect because not all areas are weak and not all earthquakes occur in the same location. Option C is incorrect because not all faults are moving at the same time, and the specific properties required for an earthquake may not always be present. Option D is also incorrect because while plate boundaries do move at regular rates, this does not necessarily lead to predictable and regular seismic activity.

Earthquakes Along the San Andreas Fault Zone,for Example,are Repetitive-They Reoccur