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Virginia powerplant holds nuke disaster simulation
On Tuesday, nuclear plant officials and emergency responders recently participated in an exercise to simulate an accident at the Surry atomic power plant in Virginia; Dominion Virginia Power, which operates the state’s four nuclear reactors, regularly holds exercises like these at the Surry plant, but following Japan’s nuclear disaster, the exercises have become even more important
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Studying the Japan quake's impact on soil will improve building design
The 11 March quake that hit Japan weakened subsurface materials by as much as 70 percent; that nonlinear response from the top layer of the Earth’s crust affected how the movement of faults deep beneath the surface was delivered to buildings, bridges, and other structures; understanding how the soil responds to powerful earthquakes could be important to engineers and architects designing future buildings to withstand the level of acceleration measured in this quake
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Sensor network to provide early quake alerts
Researchers from U.S. universities are collaborating to implement a new network of seismic sensors aimed at arming communities with early earthquake detection and warning capabilities; the sensors, no bigger than a Post-it note, are part of a new phase of the Quake-Catcher Network (QCN), a project gathering detailed data to help scientists understand the earthquake process and how to mitigate against its effects
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U.S. West Coast is rapidly eroding, with pace to accelerate
The stormy conditions of the 2009-10 El Nino winter eroded beaches from San Diego to Seattle to often unprecedented levels; the higher sea levels expected due to global warming, and potentially even stronger winter storms, will likely to contribute to increased rates of beach and bluff erosion along much of the U.S. West Coast
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Method for early detection of tsunami found
Researchers, for the first time, have recorded an airglow signature in the upper atmosphere produced by a tsunami; the signature, caused by the 11 March earthquake that devastated Japan, was observed in an airglow layer 250 kilometers above the Earth’s surface; it preceded the tsunami by one hour, suggesting that the technology could be used as an early-warning system in the future
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Japan's prime minister pushes to end nuke program
Japan could soon be following in the footsteps of Germany and shut down its nuclear energy plants; at a televised press conference on Wednesday, Prime Minister Naota Kan pushed to end Japan’s nuclear program; “Japan should aim for a society that does not depend on nuclear energy,” Kan said
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Understanding deadly tornadoes
Scientists at the University of Alabama in Huntsville (UAH) are analyzing radar data from 27 April 2011 — the day that saw of the deadliest tornado outbreaks in U.S. history — then merging the information with detailed storm surveys and other data; they hope to learn more about how the storms formed, what made the storms so powerful and what might be done to make tornado warnings more effective
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Volunteers help California build quake sensor network
Thousands of residents across California are helping the U.S Geological Survey (USGS) build a dense network of seismic sensors across the state; as part of the Quake Catcher Network, Californians are being asked to place 6,000 seismic sensors in their homes to help geologists study earthquakes
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Louisiana parish plans extreme weather alert system
Emergency officials in Ouachita Parish, Louisiana are considering installing warning sirens that would alert residents of dangerous weather; officials hope to install sixty towers throughout the Parish; authorities are currently conducting feasibility studies to determine if installing the sirens is practical and a financial possibility
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Trapped couple receives bill for stay in New Zealand hotel during quake
A couple stuck in a Christchurch, New Zealand hotel after the 22 February 6.3 magnitude earthquake struck the city, was shocked to discover they had been charged for their stay; a New Zealand man and his wife were trapped on the hotel’s twenty-second floor for hours and eventually were forced to escape after daringly crossing collapsed stair cases, smashing down doors, and crawling to the roof of a parking lot nearby
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45 percent of children in Fukushima exposed to thyroid radiation
A survey revealed that 45 percent of children living near the Fukushima Daiichi nuclear power plant have been exposed to thyroid radiation; following the nuclear disaster and the revelation that radiation was leaking from reactor no. 1, researchers tested more than 1,000 children from newborns to age fifteen in the Fukushima Prefecture; children were found to have been exposed to 0.04 microsievert per hour or less in most cases
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Key to coping with disasters: neighbors
A political scientist who had moved to New Orleans only weeks before Hurricane Katrina concluded that neighbors — and cooperation among neighbors — are more important for surviving, coping with, and recovering from disasters than ambulances and fire trucks and government aid; to make sure his observations were more than anecdotal, he visited disaster areas around the world, and his data show that his personal experiences reflect a larger truth
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Disasters hit businesses hard, keeping many permanently closed
Business owners across the United States are being urged to create emergency plans, so that they can continue operating in the wake of a natural disaster; according to the Insurance Institute for Business and Home Safety, 25 percent of businesses hit by a natural disaster are unable to continue functioning
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Missouri struggles to pay for natural disasters
Last week, Missouri governor Jay Nixon ordered his state budget director to put aside an additional $100 million to help the state’s disaster stricken areas recover; Governor Nixon has already ordered $50 million to be withheld, but Linda Luebbering, the state budget director, worries that the $150 million is not enough
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Quake-resistant superelastic alloy developed
Japanese scientists added a small amount of nickel to an iron-based alloy, and found that the new material can recover its original shape at any temperature from -196 to 240 degrees Celsius; the material may be used in environments that are constantly exposed to extreme temperatures, such as joints and controls in cars, planes, and spacecraft; it may also help buildings cushion stress and violent movement in earthquakes
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The long view
Protecting the U.S. power grid
The U.S. power grid is made up of complex and expensive system components, which are owned by utilities ranging from small municipalities to large national corporations spanning multiple states. A National Academy of Sciences report estimates that a worst-case geomagnetic storm could have an economic impact of $1 trillion to $2 trillion in the first year, which is twenty times the damage caused by a Katrina-class hurricane.
More than 143 million Americans at risk from earthquakes
More than 143 million Americans living in the forty-eight contiguous states are exposed to potentially damaging ground shaking from earthquakes, with as many as twenty-eight million people in the highest hazard zones likely to experience strong shaking during their lifetime, according to new research. The research puts the average long-term value of building losses from earthquakes at $4.5 billion per year, with roughly 80 percent of losses attributed to California, Oregon, and Washington. By comparison, FEMA estimated in 1994 that seventy-five million Americans in thirty-nine states were at risk from earthquakes. In the highest hazard zones, the researchers identified more than 6,000 fire stations, more than 800 hospitals, and nearly 20,000 public and private schools that may be exposed to strong ground motion from earthquakes.
A large Ventura Fault quake could trigger a tsunami
Earthquake experts had not foreseen the 2011 magnitude-9 Japan earthquake occurring where it did, so soon after the disaster, scientists in Southern California began asking themselves, “What are the big things we’re missing?” For decades, seismic experts believed the Ventura fault posed only a minor to moderate threat, but new research suggests that a magnitude-8 earthquake could occur on the fault roughly every 400 to 2,400 years. The newly discovered risk may even be more damaging than a large earthquake occurring on the San Andreas Fault, which has long been considered the state’s most dangerous. Unlike the Ventura fault, the San Andreas Fault is so far inland in Southern California, that it does not pose a tsunami risk. A large earthquake on the Ventura fault, however, could create a tsunami that would begin “in the Santa Barbara Channel area, and would affect the coastline … of Santa Barbara, Carpinteria, down through the Santa Monica area and further south.”
Coastal communities can lower flood insurance rates by addressing sea-level rise
City leaders and property developers in Tampa Bay are urging coastal communities to prepare today for sea-level rise and future floods in order to keep flood insurance rates low in the future. FEMA, which administers the National Flood Insurance Program(NFIP), is increasing flood insurance premiums across the country, partly to offset losses from recent disasters such as hurricanes Katrina and Sandy. Cities can reduce insurance premiums for nearly all residents who carry flood coverage by improving storm-water drainage, updating building codes to reflect projected rise in sea-levels, moving homes out of potentially hazardous areas, and effectively informing residents about storm danger and evacuation routes.
California drought highlights the state’s economic divide
As much of Southern California enters into the spring and warmer temperatures, the effects of California’s historic drought begin to manifest themselves in the daily lives of residents, highlighting the economic inequality in the ways people cope. Following Governor Jerry Brown’s (D) unprecedented water rationing regulations,wealthier Californians weigh on which day of the week no longer to water their grass, while those less fortunate are now choosing which days they skip a bath.