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Geography

Which outcome results when a seismically-active fault plane locks?

A)Elastic strain accumulates in surrounding rocks
B)Accelerated fault creep rate observed
C)Reduced pore pressure along fault line
D)Increased surface wave propagation velocity

💡 Explanation

Elastic strain accumulates because the fault's frictional resistance prevents slip; this is known as the stick-slip mechanism. Therefore, energy builds up to be released by sudden rupture, rather than by steady creep or wave propagation.

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