The active sections that are located along fault lines are called
a. recurrence gaps.
b. stress accumulations.
c. seismic risks.
d. seismic gaps.

The active sections located along the fault lines are called seismic gaps, letter D. Seismic gaps are segment of an active plate that has not recently deformed and is likely to cause earthquake in the future.

just took the test the answer is b.

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