Nature Communications (Dec 2016)
Tremor activity inhibited by well-drained conditions above a megathrust
Abstract
Low-frequency earthquakes (LFEs) in megathrusts are due to weak shear strength and high fluid pressure, but controls on LFE location remain unclear. Nakajima and Hasegawa show that LFE occurrence is limited to beneath unmetamorphosed undrained portions of the overlying plate.