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Magnified through a microscope, diatoms, which are a type of siliceous microalgae preserved within sediment, helped the researchers determine the salinity levels of the core samples. Photo courtesy of Jessica DePaolis.

Subduction zone splay faults compound hazards of great earthquakes

May 28, 2024

Researchers used unmanned aerial vehicle images superimposed on centimeter-resolution topography to study the surface rupture of the 2021 magnitude 7.4 Maduo earthquake in China. This image shows the fault scarp, tensional cracks on the hanging wall, and the left-laterally offset channel. Credit: Yanxiu Shao

Fault maturity or orientation: Which matters more for quakes?

A cut slice of altered mantle rock. (Photo by: Solvin Zankl)

Researchers studying ocean transform faults, describe a previously unknown part of the geological carbon cycle

The modern Seattle fault zone cuts directly through the densely populated Puget lowlands, including Seattle and its metro area. Fifty million years ago, the continent tore in two here, setting the geologic stage for the modern faults, according to a new Tectonics study. Credit: Washington Geological Survey.

A new origin story for deadly Seattle fault

Credit: Science Advances (2023). DOI: 10.1126/sciadv.adh0150

New 3D images give never-seen-before views inside New Zealand’s largest fault

Strike Slip Fault

September 1, 2012

Reverse Fault

August 15, 2012

Normal Fault

August 11, 2012

San Andreas Fault

August 9, 2012

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