Which risk increases when a subsurface fault line intersects a large reservoir?

💡 Explanation

When a reservoir overlies a fault, impoundment changes the pore pressure along the fault because the water loads the crust, which weakens the fault promoting slip and induced seismicity. Therefore, induced seismicity increases, rather than sedimentation, increased evaporation or methane release, which involve processes independent of subsurface fault dynamics.

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