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Eos - Tiny Kinks Record Ancient Quakes

A kinked muscovite grain embedded within a fine-grained, highly deformed matrix of other minerals displays asymmetric kink bands. Credit: Erik Anderson — A kinked muscovite grain embedded within a fine-grained, highly deformed matrix of other minerals displays asymmetric kink bands. Credit: Erik Anderson

Tiny Kinks Record Ancient Quakes

By Alka Tripathy-Lang

July 19, 2021

Every so often, somewhere beneath our feet, rocks rupture, and an earthquake begins. With big enough ruptures, we might feel an earthquake as seismic waves radiate to or along the surface. However, a mere 15% to 20% of the energy needed to break rocks in the first place translates into seismicity, scientists suspect.

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