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faults

Aerial photo of a large rupture caused by an earthquake.
Posted inResearch Spotlights

Fault Maturity or Orientation: Which Matters More for Quakes?

Sarah Stanley, Science Writer by Sarah Stanley 10 April 20248 July 2024

Close examination of a 2021 earthquake on the Tibetan Plateau provides hints that, counter to prior assumptions, the influence of fault orientation can sometimes trump that of maturity.

Coastline with tall cliffs
Posted inNews

Earthquakes Can Trigger Megathrust Slip in Cascadia

by Caroline Hasler 8 April 20248 April 2024

A 2022 earthquake in Northern California may have triggered slow slip in the Cascadia Subduction Zone, according to a new study.

A mountain with alternating stripes of greenery and bare beige rock. There is a point in the middle of the rock where the stripes change direction, indicating a fault propagation fold.
Posted inResearch Spotlights

Uncovering Earthquake Evidence in Azerbaijan’s Greater Caucasus Mountains

by Rebecca Owen 27 March 202418 June 2024

A new study unearths geological evidence that corroborates historical accounts of large earthquakes along the Kura fold-thrust belt.

Diagram from the paper.
Posted inEditors' Highlights

How Earthquakes Grow from a Tiny Fracture to a Catastrophic Event

by Satoshi Ide 27 March 202422 March 2024

State-of-art numerical simulations illustrate how a small-scale shear instability can become a giant earthquake in a manner that is consistent with seismological observation.

Satellite image of Honshu Island
Posted inResearch Spotlights

Plate Boundaries May Experience Higher Temperature and Stress Than We Thought

Aaron Sidder, freelance science writer by Aaron Sidder 21 February 202421 February 2024

Surface heat flux data shed light on conditions deep below Earth’s surface, at a tectonic plate interface where major earthquakes initiate.

Graphs showing the performance of the deep learning network developed in this study.
Posted inEditors' Highlights

Deep Learning Facilitates Earthquake Early Warning

by Han Yue 14 February 202413 February 2024

A deep learning model trained with real-time satellite data significantly reduces the time to predict the ground motion of big earthquakes.

Map showing the likelihood of damaging earthquake shaking across the United States in the next 100 years sitting onto a globe.
Posted inNews

The United States Has an Updated Map of Earthquake Hazards

by Caroline Hasler 14 February 202414 February 2024

The new National Seismic Hazard Model shows where damaging earthquakes are likely to occur, informing public safety and infrastructure policies.

A sheet of gray and brown rock with several large veins running across it diagonally. A flat, white, rectangular measurement device is in the center of the frame.
Posted inResearch Spotlights

Scientists Model What’s Moving Beneath Earth’s Surface

Aaron Sidder, freelance science writer by Aaron Sidder 30 January 202430 January 2024

A 3D printed model of a fault served as the setting for a hydrofracturing experiment exploring the mechanisms behind slow earthquakes.

Diagram from the study.
Posted inEditors' Highlights

Law and Order for Friction and Faults: One Law to Rule Them All

by Peter Zeitler 19 January 202418 January 2024

Faults are made of complex materials with complex behaviors, and having a single model that can predict these behaviors is an advance in understanding deformation and the earthquake cycle.

Two people install a small seismometer in a tropical forest.
Posted inNews

Costa Rican Faults Quiver in Response to Distant Earthquakes

by Gillian Dohrn 4 January 20244 January 2024

Scientists found flurries of seismic activity within weak fault zones in Costa Rica after two giant ruptures elsewhere.

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