Final answer:
The range of movement along the San Andreas Fault varies by location, with Parkfield seeing movements of about 1 meter every 25 years and the Los Angeles area averaging 7 meters every 150 years.
Step-by-step explanation:
The question pertains to the range of movement along a fault line, specifically the San Andreas Fault, and the resulting earthquakes. The information provided indicates that the San Andreas Fault near Parkfield has a history of moving approximately 1 meter roughly every 25 years, whereas the region around Los Angeles generally sees major earthquakes with an average interval of 150 years, moving about 7 meters. The last significant movement in the Los Angeles region occurred in 1857, and it is indicated that stress has been accumulating since then, which will eventually need to be released, leading to another earthquake. Meanwhile, instruments show that the Los Angeles basin is experiencing distortion and contraction due to these building pressures.