Hazards

New technologies that detect motion in the Earth’s crust are emerging in surprising places and reshaping our understanding of earthquakes.

Smoke from wildfires may have contributed to thousands of additional premature births in California between 2007 and 2012. The findings underscore the value of reducing the risk of big, extreme wildfires and suggest pregnant people should avoid very smoky air.

A new machine learning approach helps scientists understand why extreme precipitation days in the Midwest are becoming more frequent. It could also help scientists better predict how these and other extreme weather events will change in the future.

California may be headed for another record-breaking wildfire season. Stanford researchers discuss the shift in federal, state and local approaches necessary to turn the tide of destruction.

A new analysis of the 2018 collapse of Kīlauea volcano’s caldera helps to confirm the reigning scientific paradigm for how friction works on earthquake faults. The model quantifies the conditions necessary to initiate the kind of caldera collapse that sustains big, damaging eruptions of basaltic volcanoes like Kīlauea and could help to inform forecasting and mitigation.

A new method for seeing through ice sheets using radio signals from the sun could enable cheap, low-power and widespread monitoring of ice sheet evolution and contribution to sea-level rise.

Researchers examined the number of households unable to pay for damages from coastal flooding to reveal how sea-level rise could threaten the fabric of Bay Area communities over the next 40 years.

Warnings of another severe wildfire season abound, as do efforts to reduce the risk of ignition. Yet few are taking precautions against the smoke. Stanford experts advise on contending with hazardous air quality.

The analysis estimates pollution reductions between 1999 and 2019 contributed to about 20 percent of the increase in corn and soybean yield gains during that period – an amount worth about $5 billion per year.

Because foreshocks precede larger quakes, they have long presented the tantalizing prospect of warning of potentially damaging earthquakes. But to date, they have only been recognized in hindsight, and scientists for decades have sought to understand the physical processes that drive them. Computer modeling by Stanford geophysicists finds answers in the complex geometry of faults.

Disruptions from sea level rise and coastal flooding events have significant indirect impacts on urban traffic networks and road safety.

April 2021 saw a 20-year high in the number of people stopped at the U.S./Mexico border, and President Joe Biden recently raised the cap on annual refugee admissions. Stanford researchers discuss how climate change’s effect on migration will change, how we can prepare for the impacts and what kind of policies could help alleviate the issue.

Stanford scientists simulated the local risk of damaging or nuisance-level shaking caused by hydraulic fracturing across the Eagle Ford shale formation in Texas. The results could inform a new approach to managing human-caused earthquakes.

Analysis of sales data and flood risk data over two decades indicates that housing markets fail to fully account for information about flood risk. The findings suggest that policies to improve risk communication could influence market outcomes.

Efforts to prevent human exposure to asbestos may be mobilizing the cancer-causing mineral so that it can reach water supplies, based on new findings about how the fibers move through soil.

A deep neural network developed at Stanford and trained on more than 36,000 earthquakes offers a new way to quickly predict earthquake shaking intensity and issue early warnings of strong shaking.

Prolonged and potentially destabilizing water shortages will become commonplace in Jordan by 2100, new research finds, unless the nation implements comprehensive reform, from fixing leaky pipes to desalinating seawater. Jordan’s water crisis is emblematic of challenges looming around the world as a result of climate change and rapid population growth. 

The Biden administration’s ambitious plans for environmental progress face complex obstacles. The findings, expertise and policy experience of Stanford researchers working across multiple fields could help contribute to sustainable, cost-effective solutions.

A decade after a powerful earthquake and tsunami set off the Fukushima Daiichi nuclear meltdown in Japan, Stanford experts discuss revelations about radiation from the disaster, advances in earthquake science related to the event and how its devastating impact has influenced strategies for tsunami defense and local warning systems.

Wildfire smoke will be one of the most widely felt health impacts of climate change throughout the country, but U.S. clean air regulations are not equipped to deal with it. Stanford experts discuss the causes and impacts of wildfire activity and its rapid acceleration in the American West.

Flooding has caused hundreds of billions of dollars in damage in the U.S. over the past three decades. Researchers found that 36 percent of the costs of flooding in the U.S. from 1988 to 2017 were a result of intensifying precipitation, consistent with predictions of global warming.

Stanford researchers used millimeter-sized crystals from the 1959 eruption of Hawaii’s Kilauea Volcano to test models that offer insights about flow conditions prior to and during an eruption.

New management approaches and technology have allowed the U.S. Corn Belt to increase yields despite some changes in climate. However, soil sensitivity to drought has increased significantly, according to a new study that could help identify ways to reverse the trend. 

Tiny movements in Earth’s outermost layer may provide a Rosetta Stone for deciphering the physics and warning signs of big quakes. New algorithms that work a little like human vision are now detecting these long-hidden microquakes in the growing mountain of seismic data.