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faults

Two people stand on the edge of a road, looking at a straight crack, representing the surface trace of a fault, the cuts across the road and offsets its painted centerline.
Posted inFeatures

Striking Out into the Field to Track Slip on the Sumatran Fault

by Karen Lythgoe, Umar Muksin, Arifullah, Andrean Simanjuntak and Shengji Wei 16 March 202223 June 2022

An international team overcame many challenges, including from the COVID-19 pandemic, to deploy a dense seismic network along an understudied fault system that poses hazards to millions in Indonesia.

Two microstructural schematic diagrams showing how clay influences the void space connectivity and permeability of unfaulted sandstone and faulted sandstone.
Posted inEditors' Highlights

Clay Type, Not Just Content, Crucial for Fault Zone Permeability

by Michael Heap 14 February 202219 October 2022

Faults containing clays are often considered as barriers to fluid flow but new work shows that fault processes leading to the formation of clays can increase permeability relative to the host rock.

Sputnik Planitia, which features nitrogen ice plains on Pluto
Posted inResearch Spotlights

Clues to Pluto’s History Lie in Its Faults

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 31 January 20221 February 2022

Studying geological features on Pluto’s surface can illuminate the ancient history of how the dwarf planet formed.

The Circulation Obviation Retrofit Kit (CORK) borehole monitoring observatory, pictured here, connected to the Ocean Networks Canada cable system.
Posted inResearch Spotlights

海洋地壳中的断层导致慢地震波

Sarah Derouin, Science Writer by Sarah Derouin 26 January 202226 January 2022

对海洋地壳中流体压力的高采样率测量揭示出未知的裂隙和流体流动的路径。

A view of the San Andreas Fault
Posted inResearch Spotlights

How Fault Surface Features Can Tell Us About Future Earthquakes

Elizabeth Thompson by Elizabeth Thompson 21 December 202121 December 2021

A new study suggests ways to quantify fault maturity, a property that affects earthquake characteristics.

A dam impounds a large reservoir (background) as seen from a stone fort (foreground).
Posted inNews

A Monsoon-Filled Reservoir Might Have Nudged a Fault to Fail

by Maria Rose 16 December 202116 December 2021

New research examines whether a sudden increase in water loading in Pakistan’s Mangla Dam might have been connected to the 2019 New Mirpur earthquake.

The Circulation Obviation Retrofit Kit (CORK) borehole monitoring observatory, pictured here, connected to the Ocean Networks Canada cable system.
Posted inResearch Spotlights

Faults in Oceanic Crust Contribute to Slow Seismic Waves

Sarah Derouin, Science Writer by Sarah Derouin 10 December 202126 January 2022

New high-sampling rate measurements of fluid pressures in oceanic crust reveal unresolved fractures and pathways for fluid flow.

Against a blue sky streaked with white clouds, Michael Bunds runs along a dirt road as he lands a black fixed-wing drone. Chelsea Scott, wearing red, stands with her back to the photographer, watching the drone and looking at desert scrub in the foreground.
Posted inENGAGE, News

Drone Rules Make Tracking Down Faults a Difficult Feat

by Alka Tripathy-Lang 6 October 202124 April 2024

Regulations differ from country to country, but on one point, they’re relatively uniform: Drones must remain within their operators’ line of sight. How do earthquake scientists collect drone data while working within the rules?

The San Andreas Fault near Juniper Hills, Calif.
Posted inResearch Spotlights

A New Method Produces Improved Surface Strain Rate Maps

by Jack Lee 19 July 20215 December 2022

The transdimensional Bayesian approach handles GPS data limitations better than existing methods and may assist future seismic hazard assessment studies.

An arc-shaped coseismic shear belt associated with the 2018 Mw 4.9 earthquake at Etna volcano shows up on both mapping and InSAR.
Posted inEditors' Highlights

Volcano—Tectonic Interactions at Etna

by J. Hubbard 6 July 202127 October 2021

Mapping of a 2018 earthquake that ruptured the eastern flank of Mount Etna shows that it occurred on a tectonic lineament that predates the volcano, and the kinematics match nearby tectonic domains.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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Multi-Scale Fault Roughness Encapsulated in a Friction Law

11 June 202611 June 2026
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Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

4 June 20263 June 2026
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