Variations in hot spring geochemistry from adjacent mountain ranges with different styles of faulting highlight the influence of crustal-scale structures on circulating fluids in the Peruvian Andes.
faults
Posted inEditors' Highlights
Strain Rate: The Overlooked Control on Earthquake Depth
Regional strain rate may play as significant a role as temperature in governing the depth distribution of earthquakes in mantle lithosphere.
Posted inEditors' Highlights
Fluctuating Fluid Flows in a Fractured Fault
Fault damage zones can focus fluid transport near faults.
Posted inEditors' Highlights
Fine-scale Structure Mapped by Body Waves Extracted from Noise
A novel processing scheme was used to extract refracted body waves from ambient seismic noise and investigate the small-scale structure around a fault at Long Beach, California.
Posted inEditors' Highlights
Ultrahigh Speed Movies Catch Growing Earthquake Ruptures
Comparing successive frames from ultrahigh speed videos of propagating fractures allowed laboratory researchers for the first time to capture the fine details of of a propagating earthquake rupture.
Posted inEditors' Highlights
Slow Slip By Any Other Name
Earth’s faults slip most catastrophically as earthquakes. The rise of geodesy reveals an array of slower slip events, meaning faults are nearly always active. Are these behaviors really so different?
Posted inResearch Spotlights
Fault Dips Figured in Kīlauea’s Caldera Collapse
Large-volume volcanic eruptions can create instabilities in the ground above magma chambers, leading to massive collapses and telltale calderas.
Posted inFeatures
Scientists Scramble to Collect Data After Ridgecrest Earthquakes
Ground shaking in Southern California, including a magnitude 7.1 temblor, triggered a massive mobilization effort to collect seismological, geological, and geodetic data.
Posted inEditors' Highlights
What Controls How Quickly Faults Heal?
The rates at which fault zones “heal” through secondary mineralization have been elusive, but uranium-thorium dating of calcite growth in fault-zone fractures may provide the answer.
Posted inFeatures
Machine Fault
Applying machine learning to subtle acoustic signals from an earthquake machine has revealed big clues about fault behavior in the lab.