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← GeographyWhich outcome occurs when fluids rise to earthquake hypocenter?
A)Increased pore pressure, induced seismicity✓
B)Reduced friction, tectonic creep events
C)Decreased mantle viscosity, eruption suppression
D)Elevated thermal gradient, metamorphic reactions
💡 Explanation
Fluids rising from depth increase pore pressure, triggering induced seismicity near the hypocenter because this decreases effective normal stress and promotes failure. Therefore, induced seismicity increases rather than promotes creep, which requires slow fault movement.
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