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Urban Areas More Likely to Have Precipitation-Triggered Landslides
Urban areas may be at greater risk for precipitation-triggered landslides than rural areas, according to a new study that could help improve landslide predictions and hazard and risk assessments. Researchers found that urban landslide hazard was up to 10 times more sensitive to variations in precipitation than in rural areas.
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Earthquake System Model with Better Detection Capabilities
researchers developed a machine learning model that improves the accuracy of detecting earthquakes by 14.5 percent compared to the most accurate current existing model.
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Disasters: To Flee or Not to Flee
The Montecito debris flows that occurred in January 2018 were the result of a rare confluence of two uncommonly severe events: the Thomas Fire — at that time the largest wildfire in California history — which for weeks burned through Ventura and Santa Barbara counties; and the intense winter storm that followed. Researchers say it is important to keep residents — and emergency management offices — informed about rare but potentially lethal natural events.
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Nuclear Physics Used to probe Floridan Aquifer Threatened by Climate Change
Florida is known for water. Between its beaches, swamps, storms and humidity, the state is soaked. And below its entire surface lies the largest freshwater aquifer in the nation. As rising sea levels threaten coastal areas, scientists are using an emerging nuclear dating technique to track the ins and outs of water flow.
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Disrupting Asteroids to Protect the Earth
If an asteroid is on an Earth-impacting trajectory, scientists typically want to stage a deflection, where the asteroid is gently nudged by a relatively small change in velocity, while keeping the bulk of the asteroid together. Researchers have examined how different asteroid orbits and different fragment velocity distributions affect the fate of the fragments, using initial conditions from a hydrodynamics calculation, where a 1-Megaton-yield device was deployed a few meters off the surface of a 100-meter diameter asteroid.
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Research Showing Increase in Tropical Cyclone Rainfall to Aid Disaster Planning
Research on tropical cyclone precipitation extremes provides data on inland flooding that could help communities be more prepared for the high amounts of rainfall produced by storms such as Hurricane Ida in the United States.
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Project to Look Below the Surface to Make NYC More Resilient
Hurricanes Ida and Henri caused flooding in New York City, demonstrating the need for comprehensive, quickly accessible data about the spatial relationships between utility conduits, water and waste systems, fuel transit pipelines, transportation tunnels, and other infrastructure beneath our feet.
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Record-Breaking Texas Drought More Severe Than Previously Thought
In 2011, Texas experienced one of its worst droughts ever, with the dry, parched conditions causing more than $7 billion in crop and livestock losses, sparking wildfires, pushing power grids to the limit, and reducing reservoirs to dangerously low levels. A new study finds that the drought was worse than previously thought.
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“Risk Triage” Platform Pinpoints Compounding Threats to U.S. Infrastructure
As climate change amplifies the frequency and intensity of extreme events in the United States and around the world, and the populations and economies they threaten grow and change, there is a critical need to make infrastructure more resilient. But how can this be done in a timely, cost-effective way? Modeling tool developed by MIT researchers focuses on multi-sector dynamics.
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Looking to the Past for Answers on Future Tsunami Threats
Large and destructive tsunamis in the past few decades — in the Indian Ocean in 2004, Chile in 2010 and Japan in 2011 — have underscored the threat tsunamis pose to coastal regions. Now new research is aimed at better predicting areas threatened by such fast-developing natural disasters.
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New Tool Mappin Floods Since 1985 Will Aid Disaster Planning
Free online World Flood Mapping Tool will help plan urban and agricultural development, effective flood defenses, disaster readiness, and identify supply chain vulnerabilities
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Little Difference between Managed, Unmanaged Flows of Urban Stormwater
A new study suggests that expensive efforts to control urban stormwater by investing heavily in green infrastructure — such as water-quality ponds, infiltration basins, porous pavement and riparian plantings — may not have much of an impact.
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Minor Volcanic Eruptions Could “Cascade” into Global Catastrophe
Researchers call for a shift in focus away from risks of “super-volcanic” eruptions and toward likelier scenarios of smaller eruptions in key global ‘pinch points’ creating devastating domino effects.
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Current Southwest Drought Is a Preview of Things to Come
Scientists found that the record-low precipitation that kicked off the unprecedented drought parching the U.S. Southwest since 2020 could have been a fluke—just the rare bad luck of natural variability. But the drought would not have reached its current punishing intensity without the extremely high temperatures brought by human-caused global warming.
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Predicting, Managing, and Preparing for Disasters Like Hurricane Ida
Since Hurricane Katrina swept through Louisiana almost exactly 16 years ago, the National Academies have helped produce scientific insights and recommendations through initiatives to help policymakers avoid the worst impacts of future disasters.
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More headlines
The long view
Using Drone Swarms to Fight Forest Fires
Forest fires are becoming increasingly catastrophic across the world, accelerated by climate change. Researchers are using multiple swarms of drones to tackle natural disasters like forest fires.
How Climate Change Will Affect Conflict and U.S. Military Operations
“People talk about climate change as a threat multiplier,” said Karen Sudkamp, an associate director of the Infrastructure, Immigration, and Security Operations Program within the RAND Homeland Security Research Division. “But at what point do we need to start talking about the threat multiplier actually becoming a significant threat all its own?”