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Journal of Geophysical Research: Solid Earth

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Schematic showing how ground and groundwater are moving in the Valley of Mexico.
Posted inResearch Spotlights

The Looming Crisis of Sinking Ground in Mexico City

by L. O’Hanlon 22 April 20219 May 2023

New research reveals the cause of Mexico City’s rapidly sinking and fracturing ground.

Plot showing seismicity near Mount Rinjani volcanoat Lombok Island, Indonesia, during July-September 2018
Posted inEditors' Highlights

Relating Seismicity and Volcano Eruptions

by I. Zaliapin 7 April 202112 January 2022

A global study suggests that volcanic eruption forecasting and detection may be improved by examining earthquake mechanisms and clustering in combination with individual volcano properties.

Map of magnetic anomaly field intensity in the study area in the Pacific Ocean
Posted inEditors' Highlights

Probing the Age of the Oldest Ocean Crust in the Pacific

by Mark J. Dekkers 5 April 202127 January 2023

A new study extends the calibration of the Mesozoic Sequence down to the Mid Jurassic with multiscale marine magnetic anomaly data, demonstrating extraordinarily high reversal frequency.

Plot showing the distribution of magnitudes (blue) and positive magnitude differences (red) for aftershocks of the 2019 M7.1 Ridgecrest California earthquake
Posted inEditors' Highlights

A New Robust Estimator of Earthquake Magnitude Distribution

by Agnes Helmstetter 19 March 20215 December 2022

The b-value, which describes the fraction of large versus small earthquakes, is less sensitive to transient changes in detection threshold and may improve the detection of precursory changes.

Looking out from inside Lower Antelope Canyon, with the sky near the top of the frame. Characteristic layering in the sandstone is visible.
Posted inResearch Spotlights

The First Angstrom-Scale View of Weathering

Kate Wheeling, freelance science writer by Kate Wheeling 15 March 202113 October 2022

Researchers observe how water vapor and liquid alter sedimentary rocks through physical and chemical processes.

Map of the study area in western India showing a network of seismic recording stations
Posted inEditors' Highlights

Hunting the Source of Deccan Traps Volcanism Using Seismic Waves

by Fiona Darbyshire 1 March 20218 July 2024

Seismic velocity patterns beneath the Deccan Traps region in western India reveal its volcanic history.

Photo taken from the International Space Station of Shikoku Island and other parts of Japan
Posted inResearch Spotlights

An Innovative Approach for Investigating Subduction Slip Budgets

by David Shultz 19 February 202118 January 2022

A new 3D model offers a state-of-the-art look at the full spectrum of slip behaviors in the Nankai subduction zone off Japan.

Map view of the topography of Central America and surrounding ocean basins
Posted inResearch Spotlights

Subduction May Recycle Less Water Than Thought

Sarah Stanley, Science Writer by Sarah Stanley 12 February 202127 January 2023

A new analysis of seismic data from the Middle America Trench suggests that previous calculations have vastly overestimated the total amount of water transported to the mantle worldwide.

Plot showing aftershocks triggered by the 1992 Landers earthquake in California and Coulomb stress changes
Posted inEditors' Highlights

The Failure of Physics-Based Earthquake Forecasting Models

by Agnes Helmstetter 12 February 20219 March 2023

Spatial clustering of aftershocks explains why simple statistical models often outperform complex physics‐based earthquake forecasting models even if the physical mechanisms are correctly modeled.

A rocky hillside in Antarctica with snow-covered Mount Erebus in the background
Posted inResearch Spotlights

Antarctic Lava Yields Clues to Earth’s Past Magnetic Field

Sarah Stanley, Science Writer by Sarah Stanley 3 February 20214 October 2021

A new analysis suggests that a widely accepted approximation of ancient magnetic field strength may be less accurate for the past 5 million years than previously thought.

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