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M. Manga

A single geyser erupts steam into the sky.
Posted inFeatures

Why Study Geysers?

by S. Hurwitz, M. Manga, K. A. Campbell, C. Muñoz-Saez and E. P. S. Eibl 30 July 202125 February 2022

Aside from captivating our senses, geysers have much to tell us about subsurface fluids, climate change effects, and the occurrence and limits of life on Earth and elsewhere in the solar system.

Ecuador’s Tungurahua volcano. A 2017 report summarizes the current state of volcano science and issues three grand challenges.
Posted inScience Updates

Working Together Toward Better Volcanic Forecasting

by M. Manga 8 January 201828 March 2023

A National Academies report highlights challenges and opportunities in volcano science.

Posted inNews

Richard J. O’Connell (1941–2015)

by M. Manga and Thorsten W. Becker 17 November 201716 November 2021

This son of a Montana sheriff discovered the fundamental rules underlying complex geophysical phenomena, and he taught others to do the same.

A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

Features from AGU Publications

Research Spotlights

Marine Heat Waves Can Exacerbate Heat and Humidity over Land

2 January 20262 January 2026
Editors' Highlights

Frictional Properties of the Nankai Accretionary Prism

11 December 20259 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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