Geodynamics

Introducing the new blog team!

Jean-Baptiste Koehl and Alexis Gauthier June 24, 2026

Happy 9th anniversary to EGU's Geodynamics Blog! (Illustration by Lea Pennacchioni)

Hello blog readers! It’s Jean-Baptiste and Alexis. With EGU26 now behind us and summer approaching fast, we wanted to announce the start of the 9th blogging season for the Geodynamics division and introduce the team for the 2026–2027 year. We both have the privilege and the daunting challenge of succeeding Constanza and Michael as Editors-in-Chief of the Geodynamics Blog. Over the past three years ...[Read More]

Modeling the full spectrum of observed seismicity: Insights from friction laws, fault instability, and fault-zone mechanics

Navid Kheirdast and edited by Alexis Gauthier June 17, 2026

Introduction Despite advances in our understanding of rock mechanics, the frictional behavior of rocks, and the physics of instability in geological materials, the coexistence of slow and fast earthquakes, as well as various types of fault-zone seismic radiation such as tremor, remains enigmatic. Can fault mechanics and friction laws reproduce the full spectrum of observed seismicity? In this week ...[Read More]

(Almost) everything wrong with: Journey to the Centre of the Earth

Conor Farrell and edited by Michaël Pons June 10, 2026

Spoiler warning! Have you ever watched a science fiction movie and thought, huh, I wonder if that is actually possible? Now, I hope by the time the dinosaurs turned up during this film, that this transient thought had departed from your mind, but to satisfy the idle curiosity of those who wondered this during Journey to the Centre of the Earth, and perhaps even impart some geodynamical les ...[Read More]

Melting Glaciers Move Lithospheric Plates and Fluctuate Mid-ocean Ridges’ Spreading

Tao Yuan and edited by Prachi Kar June 3, 2026

(Photo by Robin Littlefield, Woods Hole Oceanographic Institution)

The rise and fall of massive ice sheets have shaped Earth’s surface for millions of years, but their influence may extend far deeper than previously recognized. This week in News & Views, Tao Yuan, a PhD student at the University of Colorado Boulder, explores how glacial cycles can alter lithospheric plate motions and even modulate the spreading of mid-ocean ridges. The ongoing melting of glac ...[Read More]