Which is the slight increase in rock volume produced by small cracks that form under stress and accumulated strain?

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Dilatancy refers to the slight increase in rock volume that occurs when small cracks form under stress and accumulated strain. This can happen in the lead up to an earthquake, as rocks in the Earth's crust become more brittle and prone to fracturing. Paleoseismology is the study of past earthquakes, seismic gaps refer to areas along a fault where no earthquake activity has been observed for an unusually long time, and geodesy is the study of the Earth's shape, gravity, and rotation through the use of precise measurement techniques. None of these terms specifically relate to the slight increase in rock volume caused by cracking under stress.

Which Is the Slight Increase in Rock Volume Produced by Small