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You are browsing the archive for natural hazards Archives - AGU Blogosphere.

22 July 2022

12.5-A podcast of ice and fire

Cool off from the summer heat with our next six-part miniseries all about ice – from those who call it home to its use as a tool in science.

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1 July 2022

10-Extinctions: Showdown of the giant space rocks

Dani DellaGiustina is one of the youngest leaders of a NASA mission, and she was in charge of image processing for OSIRIS-REx before she even got her PhD. OSIRIS-REx is a spacecraft sent to study asteroid Bennu and scheduled to return a sample to Earth in 2023.

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24 June 2022

9-Extinctions: Not your science fair volcano

For many of us, the word “extinctions” conjures up images of dinosaurs, asteroids, and (maybe?) volcanos. And while that last point did likely play a role in the demise of the dinosaurs, volcanos in their own right can go extinct. In this episode, we chatted with volcanologist Janine Krippner, Honorary Research Associate at the University of Waikato, about what exactly makes a volcano extinct, the difference between volcanic ash and smoke, …

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10 June 2022

7-Extinctions: Dinosaurs, a Big Rock, and…Climate Change?

When you hear the word “extinction,” chances are you probably think of the extinction of the dinosaurs and a big rock. But did you know that there were other factors at play that lead to that extinction including volcanos and sea-level rise?

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3 June 2022

6.5-Extinctions: Dinosaurs, volcanoes, the space station, oh my!

Join us for our next six-part miniseries on Extinctions as we learn about the demise of the dinosaurs, what makes a comet “extinct,” the Cambrian and Triassic periods, volcanoes, and the aforementioned (planned) fiery end of the International Space Station!

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22 November 2021

Staff Picks: Toxic City Under the Ice

In 1959, the United States built an unusual military base under the surface of the Greenland ice Sheet. Camp Century was a hub for scientific research, but it also doubled as a top-secret site for testing the feasibility of deploying nuclear missiles from the Arctic. When Camp Century was decommissioned in 1967, its infrastructure and waste were abandoned under the assumption they would be forever entombed beneath the colossal sheet of ice.  

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7 September 2021

Staff Picks: The Johnstown Flood

The Johnstown Flood occurred on May 31, 1889, after the failure of the South Fork Dam, which is located on the south fork of the Little Conemaugh River, 14 miles upstream of the town of Johnstown, Pennsylvania. The dam, constructed to provide a recreational resource in part to support The South Fork Fishing and Hunting Club, broke after several days of extremely heavy rainfall that liquified the dam and blew out the earthen structure, resulting in a …

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16 August 2021

Staff Picks: Parking Lot Lava

In a parking lot behind the Comstock Art Facility at Syracuse University, geologist Jeff Karson and sculptor Bob Wysocki cook up something almost unimaginable – homemade lava. Using a gas furnace the size of a small truck, the two professors melt gravel typically used for roadbeds into hot molten rock that they pour onto sand to recreate natural lava flows seen in places like Hawaii, Iceland and Italy.

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13 July 2020

Escape from Thera

About 3,600 years ago, a colossal volcanic eruption blew apart the Greek island Thera, now the popular tourist destination known as Santorini. Falling volcanic rock and dust buried the Bronze Age settlement Akrotiri, on the south side of the island, preserving multi-story buildings, frescoes, tools, furniture and food, until archaeological excavations uncovered them in the last century, much like the eruption of Vesuvius in 79 CE famously buried Pompeii and Herculaneum. But unlike the Roman cities, Akrotiri has a notable lack of bodies.

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15 June 2020

Instruments of Unusual Size

Volcanic craters could be the largest musical instrument on Earth, producing unique sounds that tell scientists what is going on deep in a volcano’s belly.

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18 May 2020

Mt. St. Helens: 40 Years Later

On May 18, 1980, Mt. St. Helens erupted in Washington state, capping off a series of volcanic events that began on March 27th of that year. The May 18th explosions is credited with causing 57 deaths, >$1 billion in property damage, and forever changed the surrounding landscape.

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24 March 2020

Et tu, Etna?

In 44 BCE, a momentous event occurred. Somewhere on Earth, a volcano erupted—one of the largest of last 2,500 years terms of climate impact. Traces of the eruption can be found in ice cores from Greenland and Antarctica, in signs of cold weather in the growth rings of trees around the world, and records of famine and agricultural disaster from Egypt to China. The eruption caused global climate effects lasting several years.

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4 March 2020

Third Pod Presents: Sci & Tell – Pulwarty & Hayes, Connecting Science & Society

Why do people feel they way they do about issues? Why do lawmakers and policy leaders seemingly act against their better interests? And how can information be developed in a way that leads not just to greater understanding, but to better decision making?

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11 February 2020

Climate change could trigger more landslides in High Mountain Asia

More frequent and intense rainfall events due to climate change could cause more landslides in the High Mountain Asia region of China, Tibet and Nepal, according to the first quantitative study of the link between precipitation and landslides in the region.

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31 January 2020

Small electrical charges could help airplanes avoid lightning strikes

There may be a way to make airplanes less prone to lightning strikes. The trick, surprisingly, might be to give airplanes a bit of an electrical charge when they are in the air, say scientists reporting their experimental work in AGU’s Journal of Geophysical Research: Atmospheres.

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12 December 2019

One of Europe’s worst famines likely caused by devastating floods

Europe’s Great Famine of 1315–1317 is considered one of the worst population collapses in the continent’s history. Historical records tell of unrelenting rain accompanied by mass crop failure…Now, new research using tree ring records confirms the historical data, showing the years of the Great Famine were some of Europe’s wettest.

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10 December 2019

Property values plummeted and stayed down after Hurricane Ike

Texas homes that took the biggest hit in value after 2008’s Hurricane Ike were, surprisingly, not those within historic flood zones, new research finds. Instead, they were homes just outside these zones, where damage affected whole neighborhoods, driving property value down for years, according to a team of researchers from the University of North Carolina, Chapel Hill who presented the findings this week at AGU’s Fall Meeting 2019 in San Francisco.

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11 October 2019

Special Release: Managing Emergencies in a Water World

Water is one of the things that none of us can live without. Yet, it’s taken for granted in so many parts of the parts, and even in parts of the U.S. But what would happen if we ever hit day zero, or the day that the water ran out. That probably won’t happen but Paula Buchanan is here to tell us that we still need to be vigilant.

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25 September 2019

Historic earthquakes suggest Trans-Mexican Volcanic Belt’s quiet regions are active

Seemingly low-hazard seismic regions in Mexico have experienced multiple, strong earthquakes since the 1500s, new research finds, suggesting the regions have many unmapped, active fault lines. The areas are inside the Trans-Mexican Volcanic Belt, home to roughly 40 percent of Mexico’s population, who may be unaware of the land’s seismic history.

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23 September 2019

Centennial E10 – Volcano Disaster Prepping

Many people have emergency kits packed to flee or survive forces of nature like floods, hurricanes, or wildfire. But what do you throw in your bag when you expect to rush toward a natural hazard? Geologist John Ewert has his go-kit packed with portable seismometers and gas-monitoring equipment, ready to mobilize when a volcano starts to rumble.

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