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Hazards & Disasters

Posted inEditors' Highlights

Radar Data Highlights Areas Damaged by Wildfire and Debris Flows

by B. Pirenne 14 August 201828 October 2021

Synthetic aperture radar data post-processing can be used to analyze changes in the landscape, providing a useful tool for disaster response.

Taktsang, also known as the Tiger’s Nest, is a famous cliffside monastery in western Bhutan.
Posted inScience Updates

Bhutan Earthquake Opens Doors to Geophysical Studies

by G. Hetényi, R. Cattin and D. Drukpa 13 August 201828 October 2021

A multinational research team discovered an underestimated earthquake hazard during their 7-year exploration of the unique geodynamics of the eastern Himalayas in Bhutan.

A 7 August overflight showed weakly bubbling lava at Kīlauea’s fissure 8, a significant change from flows in prior weeks.
Posted inNews

Kīlauea Eruption Abruptly Slows Down

Ilima Loomis, Science Writer by Ilima Loomis 9 August 20182 May 2022

Volcanologists say it’s too soon to know whether the sudden drop in activity signals the end of the eruption or just a pause.

Posted inEditors' Highlights

Why Space Weather Needs Ensemble Forecasting

by D. T. Welling 9 August 201810 February 2023

Weather forecasts combine many model predictions to create an ensemble that is more accurate than separate models, a technique now starting to be applied in space weather science.

Klickitat Lake in western Oregon formed when a landslide that originated along the forested ridgeline dammed a stream.
Posted inScience Updates

Hunting for Landslides from Cascadia’s Great Earthquakes

by J. P. Perkins, J. J. Roering, W. J. Burns, W. Struble, B. A. Black, K. M. Schmidt, Alison Duvall and N. Calhoun 8 August 201815 October 2021

Researchers examine the rings of drowned trees in landslide-dammed lakes for clues to today’s earthquake hazards in the Pacific Northwest.

Artist’s rendering of the impact of an enormous asteroid striking Earth about 66 million years ago, as seen from space.
Posted inNews

Dinosaur-Killing Asteroid Impact Made Huge Dead Zones in Oceans

Lucas Joel by L. Joel 8 August 20185 January 2022

The discovery reveals similarities between the extinction event that ended the Mesozoic Era and human-driven global warming.

People walking a tree-lined street during extreme smog conditions in New Delhi, India.
Posted inResearch Spotlights

Improving Air Quality Could Prevent Thousands of Deaths in India

by E. Underwood 7 August 20189 September 2024

More stringent emission controls are key to the country’s future health.

Posted inEditors' Highlights

Forecasting the Threat from the Sun

by Michael A. Hapgood 3 August 201820 May 2022

Ensemble techniques are opening a path toward space weather forecasts that give deeper understanding of the risk posed by each solar storm that approaches our planet.

Instruments at the SJG observatory in Cayey, Puerto Rico, survived Hurricane Maria and recorded the event.
Posted inScience Updates

Seismic Sensors Record a Hurricane’s Roar

by D. C. Wilson, P. Davis, C. Ebeling, C. R. Hutt and K. Hafner 3 August 201824 February 2023

Newly installed infrasound sensors at a Global Seismographic Network station on Puerto Rico recorded the sounds of Hurricane Maria passing overhead.

El Castillo, a pyramid in the ancient Maya city of Chichén Itzá.
Posted inNews

Severe Drought May Have Helped Hasten Ancient Maya’s Collapse

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 2 August 201821 March 2022

Chemical signatures from sediments in lake cores reveal that the centuries-long drought during the fall of Classic Maya civilization was worse than researchers had imagined.

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