In fault gouge, fluids drive chemical healing by cementing grains, a mechanism for seismic slip in rocks frictionally expected to creep. This cohesion matters for fault stability.
Marcos Moreno
Editor, AGU Advances
Posted inEditors' Highlights
How Dehydration-Driven Fluid Pressure Shapes Megathrust Slip Modes
By modeling dehydration-driven fluid pressure, a new study links deep fluids to where megathrust earthquakes end and slow slip begins.
Posted inEditors' Highlights
Boomerang Earthquakes Don’t Need Complex Faults
New simulations show earthquakes can reverse direction within seconds on simple, uniform faults, suggesting back-propagating subevents are more common than previously thought.
Posted inEditors' Highlights
Observing Magma-Induced Seismic Velocity Changes with Fiber-Optics
A new high-resolution method for tracking volcanic activity utilizes fiber-optic sensing to detect magma intrusion by measuring seismic velocity changes.
Posted inEditors' Highlights
Forecasting Earthquake Ruptures from Slow Slip Evolution
A new generation of physics-based models that integrate temporal slip evolution over decades to seconds opens new possibilities for understanding how large subduction zone earthquakes occur.
Posted inEditors' Highlights
Low-Frequency Quakes Have Modest Effect on Slow Earthquake Cycle
Slow slip phenomena on subdaily scales, captured by seismic and GNSS data, show that low-frequency earthquakes are incidental to larger magnitude slow earthquakes, in which aseismic slip dominates.
Posted inEditors' Highlights
Are Low-Frequency Earthquakes Just Slow Slip?
Tests of seismic attenuation show fluid saturation and high pressure near a seismic source reduce high-frequency content, challenging the idea of slow slip as the cause of low-frequency earthquakes.