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geodesy

A satellite photo shows the Caspian Sea from above.
Posted inNews

As the Caspian Sea Recedes, Tectonics May Help Shape Its Coastline

by Grace van Deelen 6 May 20247 November 2024

Land subsidence and uplift determine where the Caspian Sea’s coastline shifts the fastest.

Map of central Mexico with symbols indicating plate movement.
Posted inEditors' Highlights

Forecasting Earthquake Ruptures from Slow Slip Evolution

by Marcos Moreno 2 April 20241 April 2024

A new generation of physics-based models that integrate temporal slip evolution over decades to seconds opens new possibilities for understanding how large subduction zone earthquakes occur.

Foto de una casa que es más baja por un lado que por otro. La casa está cubierta de graffitis.
Posted inNews

La extracción de agua subterránea está causando el hundimiento de la CDMX

by Humberto Basilio 12 December 202314 December 2023

Investigadores aseguran que saber cuánta agua está siendo extraída es crucial para resolver la crisis de infraestructura y de abastecimiento de agua en la capital.

On a flooded street in Lagos, a yellow vehicle’s wheels are submerged in water, and people walk around the water on a sidewalk.
Posted inNews

Sinking Cities and Rising Waters

by Leigh Dorsey 8 December 20238 December 2023

Climate-driven sea level rise combines with land subsidence in some of Africa’s fastest-growing cities.

Un instrumento de monitoreo científico con una cubierta en forma de cúpula montado en un tripíe se encuentra en una franja de césped entre dos áreas boscosas.
Posted inResearch Spotlights

Los primeros eventos de deslizamiento lento observados en el sur de Costa Rica

Rachel Fritts, Science Writer by Rachel Fritts 20 November 202320 November 2023

Cinco eventos observados en la Península de Osa revelan nueva información sobre el papel que estos pequeños y lentos terremotos pueden desempeñar en la acumulación de tensión y riesgos de tsunami a lo largo de las zonas de subducción.

A scientific monitoring instrument with a dome-shaped cover mounted on a tripod sits in a grassy strip of land between two forested areas.
Posted inResearch Spotlights

The First Slow-Slip Events Seen off Southern Costa Rica

Rachel Fritts, Science Writer by Rachel Fritts 23 October 202320 November 2023

Five events observed off the Osa Peninsula shed new light on the role that these small, slow earthquakes can play in strain accumulation and tsunami hazards along subduction zones.

A satellite flies above planet Earth, and red dotted lines indicate communication between the satellite and both North America and Europe.
Posted inNews

Precisely Synced Clocks Pave the Way for New Science

Katherine Kornei, Science Writer by Katherine Kornei 4 August 20234 August 2023

Researchers working on Hawaiian mountain tops precisely synchronized two clocks with unprecedented efficiency, demonstrating the potential to create networks of such clocks for geodesy and more.

Photo of a house that is lower on one side than another. The house is covered in graffiti.
Posted inNews

Groundwater Pumping Is Causing Mexico City to Sink

by Humberto Basilio 5 May 202312 December 2023

Researchers say knowing how much water is being extracted is crucial for addressing infrastructure and water supply crises in the capital.

背景是群山和蓝天,前景是绿色的牧场。一条路从前景延伸到群山。
Posted inResearch Spotlights

新的构造板块模型可改进地震风险评估

by Morgan Rehnberg 18 January 202319 January 2023

新西兰构造板块的一个新模型可以识别地震可能性增加的区域。

Mountains and blue sky in the background, with green pastures in the foreground. A road extends from the foreground toward the mountains.
Posted inResearch Spotlights

New Tectonic Plate Model Could Improve Earthquake Risk Assessment

by Morgan Rehnberg 21 December 202218 January 2023

A new model of tectonic plates in New Zealand may identify areas of increased earthquake likelihood.

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18 September 202518 September 2025
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Are There Metal Volcanoes on Asteroids?

18 September 202516 September 2025
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In Appreciation of AGU’s Outstanding Reviewers of 2024

18 September 202518 September 2025
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