Re‐examining Temporal Variations in Intermediate‐Depth Seismicity

Changes in the frequency of intermediate-depth (60–300 km) earthquakes response to static stress transfer can provide insights into mechanisms earthquake generation within subducting slabs. In this study, we use most up-to-date global and regional catalogues show that both aftershock productivity large earthquakes, changes around timing major megathrust slip, support view faults slab are relatively insensitive on order drops. We interpret these results suggest population much further from their failure than is typical for shallow fault systems. also find varies slabs over small spatial scales, indicating mechanism enables rupture at intermediate depths likely be spatially heterogeneous length-scales a few tens kilometres. dehydration-related weakening best account heterogeneity.