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Hazards & Disasters

View of typical Santiaguito explosion as seen from the summit of Santa Maria.
Posted inScience Updates

Visiting the Volcano

by J. B. Johnson, B. Andrews and R. Escobar-Wolf 2 May 20165 June 2023

Workshops on Volcanoes; Santiaguito, Guatemala, 4–12 January 2016

Posted inScience Updates

Extending Recent Seismic Imaging Successes to South America

by K. M. Ward, J. R. Delph and S. L. Beck 28 April 201627 January 2023

Ambient Noise Tomography Workshop (MIMOSA); Tucson, Arizona, 17–23 January 2016

In tests of the MyShake app, researchers subjected cell phones to simulated earthquakes using a shake table at the University of California, Berkeley.
Posted inNews

Crowdsourced Seismology

by E. Deatrick 26 April 20168 December 2022

The seismologists of the world want to turn you into an earthquake detector.

The 25 May 2014 West Salt Creek landslide had a volume of 30 million cubic meters of rock and a runout of 4.5 kilometers (about 7 times its fall height).
Posted inResearch Spotlights

What Makes Long-Runout Landslides So Mobile?

Kate Wheeling, freelance science writer by Kate Wheeling 22 April 201628 March 2023

New research shows that acoustic waves rippling through some large landslides can reduce friction and allow slides to run out long distances.

Posted inEditors' Vox

Sustaining Existence: A Geoethical Dilemma

by J. W. Geissman 20 April 201623 January 2023

Would communicating science be more effective if geoethics were included in the discussion?

Posted inResearch Spotlights

The Role of Water in Earth's Tectonic Plumbing Systems

Kate Wheeling, freelance science writer by Kate Wheeling 19 April 20166 October 2021

Tidal forces act on well water around the San Andreas Fault, giving researchers a new window into the hydrogeological structure of fault zones.

Portoviejo, Ecuador, was one of the hardest-hit cities from Saturday’s 7.8 magnitude earthquake.
Posted inNews

Ecuador Earthquake Kills Hundreds, Injures Thousands

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 18 April 20162 May 2022

Ecuador's president declared a state of emergency after a large earthquake shook the country.

Posted inResearch Spotlights

Are U.S. States Prepared to Manage Water in a Changing Climate?

by Terri Cook 18 April 201626 March 2024

An empirical study of water allocation and planning in five states concludes that they lack a statewide strategy to manage the impacts of climate change on water resources.

A volcanic ash plume dwarfs the city of Puerto Montt in southern Chile just after the start of the eruption of Calbuco volcano on 22 April 2015.
Posted inResearch Spotlights

Volcanic Lightning Could Aid Hazard Response During Eruptions

Sarah Stanley, Science Writer by Sarah Stanley 15 April 201627 February 2024

Lightning and ash plume dynamics reflected eruption behavior and signaled the onset of fast-moving rock and gas flows during the 2015 eruption of Chile's Calbuco volcano.

U.S. Geological Survey Director Suzette Kimball testified at a 7 April Senate oversight hearing about the agency.
Posted inNews

Senate Pushes USGS Director for More Action on Minerals, Hazards

by Randy Showstack 12 April 201610 May 2022

Suzette Kimball also tells senators that innovation is the characteristic she hopes to nurture the most as USGS director.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

How Wildfires Worsen Flood Risk

30 April 202630 April 2026
Editors' Highlights

Drivers of Day-to-Day Temperature Swings Across Continents

1 May 20261 May 2026
Editors' Vox

Hydrothermal Heat Flow as a Window into Subsurface Arc Magmas

28 April 20261 May 2026
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