Complex megadisasters

There are disasters. There are megadisasters. And now there are complex megadisasters. From The Christian Science Monitor: Mega-quakes and mega-disasters: Will US heed wake-up call in Japan? The crisis in Japan could be considered the first "complex megadisaster" the world has ever seen — a potent combination of natural and technological calamities that might become …

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Japan tsunami propagation video and graphic

From the NOAA Center for Tsunami Research --- Honshu Tsunami Propagation Animation showing the spread of the March 11 tsunami: Note how the waves reflect and refract, just like you learned about in high school physics. Also from NOAA, a plot of the maximum amplitude of the tsunami: Note the faint gray contours; they represent …

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Billings house demolished by rock slide

People like to build in pretty places. In Billings, Montana (where I spent the first eighteen years of my life), there are plenty of big houses along the Rimrocks, a cliff that forms the northern border of much of the city. Part of the landscaping for these expensive homes is the sandstone boulders, many of …

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Billings tornado!

On Saturday, June 20, a rare Eastern Montana tornado destroyed the 10,000-seat Rimrock Auto Arena (formerly Metra) in Billings. No one was seriously injured or killed by this F2 tornado which went through a portion of Montana's largest city. Growing up in Billings, my memories of Metra include high school graduations (including mine), hockey games, …

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Sarychev Peak eruption

From NASA's Earth Observatory: Sarychev Peak Eruption, Kuril Islands, Russia. From the Earth Observatory description: A fortuitous orbit of the International Space Station allowed the astronauts this striking view of Sarychev Volcano (Kuril Islands, northeast of Japan) in an early stage of eruption on June 12, 2009. [...] Ash from the multi-day eruption has been …

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Eruption of underwater volcano, Tonga

Here's a video of an eruption of an underwater volcano near the South Pacific island of Tonga on March 19, 2009: News articles: London Times: Underwater volcano sends huge columns of ash into Pacific sky Honolulu Advertiser: 7.9 quake off Tonga could intensify volcano's eruption From NASA's Earth Observatory: Submarine Eruption in the Tonga Islands: …

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Australia flooding images

While the southern parts of Australia have been burning over the past two months, the northern parts have experienced cool weather and heavy rainfall. The following images are of Normanton, Queensland, which has been cut off by flooding for several weeks. The first image is in natural color; the second is enhanced with infrared, which …

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Chaiten Volcano, Chile

After 9000 years of dormancy, Chaiten Volcano, in a remote part of southern Chile, has been in an eruptive phase since May 2008. NASA's Earth Observatory posted these images of the 1/19/09 dome collapse yesterday: These images above don't do justice to the high resolution versions available at Earth Observatory: In these false color images, …

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Mapping the harvest

From NASA's Earth Observatory this week: Poor harvest in Kenya From NASA's description: Ten million people could face hunger in Kenya after a poor harvest, Kenya’s government warned on January 9, 2009. According to the Associated Press, the government declared a state of emergency to free up funds for food aid. This image, which shows …

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Barrier islands and hurricanes

LiveScience.com has a timely article: Ike Underscores Foolishness of Building on Barrier Islands. When Hurricane Katrina hit New Orleans, many (including me) questioned the wisdom of having a city in a sinking swamp along a river that would rather run in a different channel. I'm not saying I'm in favor of abandoning New Orleans now …

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Hurricane Ike — headed for Galveston & Houston

The deadliest natural disaster in US history was the Galveston hurricane of 1900 (they didn't name hurricanes back then). The storm surge from this category 4 hurricane washed over much of Galveston Island, killing 6,000 to 12,000 people. Galveston is now protected by a seawall, and much of the city has been raised to a …

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