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Scanning the Earth Project (environmental scanning project) is a project to provide environmental information, including the radiation dose. Currently, SafeCast has collected together with data. In this research project, fixed sensors and mobile sensors and sensing in the human living space, build a platform to share sensor data using information technology. In addition, I developed a data visualization techniques and spatial interpolation techniques in order to provide comprehensive information across time and space. Specifically, we are conducting, including fixed-point observation and instrumentation sensors installed radiation dose measurement method using a goal for automobiles and promote the creation of a sustainable platform for radiation information. Sensing information is stored in the server via the Internet, will be open to the public through the Web API. At the same time, the space-time analysis of information technology sensors will be widely available on the portal site with information visualized.

This study includes the following research areas such as big. 1. Development of Networked Sensing Devices Network development, such as sensing devices to measure radiation dose and weather information. At the same time defining a data dictionary to collect information for a variety of ground and develop a mechanism for device authentication. We also recommend the standardization of communication protocols used by the device. 2. Development of Sensor Network Development of network technology to collect data measured by the sensor. DTN protocols and collecting data of the type used in sensing movement sensor, developed a protocol for cooperation between the server and advance the standards. 3. Development of spatial analysis There is a limit to the fixed sensors and mobile sensors laying. In order to cover the space, so we developed a technique to interpolate between the measurement point information on the characteristics of each based on the information. Also, consider the API to provide their information widely. 4. The development of visualization techniques

In order to take advantage of human-sensing data is essential for meaningful visualization. In addition, the information should not be sensing a zero-dimensional visualization, visualization should not be one-dimensional, not to be visible in two dimensions, not to be visualized in three dimensions The variety of such. In this Purujeku and the visualization techniques we devised according to the characteristics of each space. Contact ste-info_at_sfc.wide.ad.jp

A nuclear or radiological emergency presents complex public health, environmental and engineering challenges. A constant flow of detailed, reliable information is indispensable to be able to marshal and coordinate the needed response which includes the prompt mobilisation and dispatch of specialised human and equipment resources, as requested. The global focal point for such coordination and information exchange is the IAEA's Incident and Emergency Centre, or IEC. It is the IEC's task to inform many different official designated actors around the world as quickly as possible whenever a nuclear or radiological emergency occurs. A sustained and reliable information flow is one of the most important resources in effective incident and emergency response. New Platform

One of the IEC's tasks is to develop and improve the communication and coordination systems that deliver authenticated and verified information to the emergency responders who need it. During the emergency response to the Fukushima Daiichi Nuclear Power Plant accident, the IEC launched a new, secure web-based communications platform, the Unified System for Information Exchange on Incidents and Emergencies, or USIE. The new system, which had been in development since 2009, replaces two existing communication systems, thus simplifying the emergency information exchange. "The new USIE system delivers a solution the emergency response community needed and requested from the IAEA," said Denis Flory, IAEA Deputy Director General for Nuclear Safety and Security. "When the IAEA's Member States respond to a nuclear incident or emergency, they need a single, secure, straight-forward system that easily adapts to their needs. That is exactly what USIE does."

Alert System Like its predecessor systems, USIE is a secure website to which registered users have access. Instead of monitoring two separate systems that previously reported on different types of incidents, users now receive alerts from the new USIE system when new information is issued about any type of incident, ranging from a lost radioactive source to a full-scale nuclear emergency. The platform delivers alerts, based upon the user's preferences, via text messages delivered to a mobile device, or via email, or via fax. The system tracks multiple events, issuing information that has been authenticated by the country reporting an accident or incident. The platform meets demanding security standards thus offering its users the assurance that the information received is reliable.

As blogger on nuclear energy for the past five years, I realize I’m writing on a niche subject that isn’t going to pull in millions of readers. Unlike some entertainment blogs, a site on nuclear energy is never going to be able to link the words “reactor pressure vessel” with the antics of a Hollywood celebrity at a New York night club. So, what can be said about the use of social media and how it has evolved as a new communication tool in a mature industry?

EBR-1 chalkboard ~ the 1st known nuclear energy blog post 12/21/51 on the Arco desert of eastern Idaho

Evidence of acceptance of social media is widespread, with the most recent example being the launch of the Nuclear Information Center, a social media presence by Duke Energy (NYSE:DUK). Content written for the Nuclear Information Center by a team of the utility’s employees is clearly designed to reach out to the general public. This effort goes beyond the usual scope of a utility Web site, which includes things like how to pay your bill online, where to call when the lights go out, and so forth.

There are battles being fought on two fronts in the five months since a massive earthquake and tsunami damaged the Daiichi nuclear power plant in Fukushima, Japan. On one front, there is the fight to repair the plant, operated by the Tokyo Electric Power Company (TEPCO) and to contain the extent of contamination caused by the damage. On the other is the public’s fight to extract information from the Japanese government, TEPCO and nuclear experts worldwide.

The latter battle has yielded serious official humiliation, resulting high-profile resignations, scandals, and promises of reform in Japan’s energy industry whereas the latter has so far resulted in a storm of anger and mistrust. Even most academic nuclear experts, seen by many as the middle ground between the anti-nuclear activists and nuclear lobby itself, were reluctant to say what was happening: That in Fukushima, a community of farms, schools and fishing ports, was experiencing a full-tilt meltdown, and that, as Al Jazeera reported in June, that the accident had most likely caused more radioactive contamination than Chernobyl

As recently as early August, those seeking information on the real extent of the damage at the Daiichi plant and on the extent of radioactive contamination have mostly been reassured by the nuclear community that there’s no need to worry.

While the government defends its new monitoring program of online postings concerning the accident at the Fukushima No. 1 nuclear power plant to stem the spread of "inaccurate" information, critics say it harkens back to Big Brother.

The Agency for Natural Resources and Energy said tweets on Twitter and postings to blogs will be monitored for groundless and inaccurate information that could inflame and mislead the public.

The agency said it is trying to "track down inaccurate information and to provide correct ones instead." But critics are skeptical about the agency's motive, especially because the government has been under fire for failing to provide an accurate picture of what has been occurring at the plant and the spread of radioactive contamination.

The Australian Government is committed to strengthening occupational health and safety requirements for individuals working at uranium mining and milling sites. The Australian Government is committed to strengthening occupational health and safety requirements for individuals working at uranium mining and milling sites.

The Australian National Radiation Dose Register (ANRDR) was established in 2010 to collect, store, manage and disseminate records of radiation doses received by workers in the course of their employment in a centralised database. The ANRDR has been open to receive dose records from operators since 1 July 2010. The ANRDR was officially launched in June 2011 following full development of the Register, including a system for workers to be able to request their individual dose history record.

The ANRDR is maintained and managed by the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA).

Some Western online reports have charged that Japan had passed a law with the intent of "cleansing" the Internet of negative reports and commentary about the accident at the tsunami-hit Fukushima Daiichi atomic plant. Chikako Ogami, a spokeswoman at the energy agency of the Ministry of Economy, Trade and Industry (METI), told AFP: "Our government will never censor information at all. These are erroneous news reports."

Ogami said the agency had set aside funds in the nation's disaster reconstruction budget for a project to monitor "inaccurate" online information that may lead to harmful rumours against residents of Fukushima. "But we will never ask Internet providers or web masters to delete such information or pin down the senders," Ogami said. "We will simply explain our thoughts on our own website and our own Twitter account."

The controversy was triggered when METI's Agency for Natural Resources and Energy earlier this month opened a call for bids for its so-called Nuclear Power Safety Regulation Publicity Project.

TEPCO, the Japanese utility company that operated Fukushima Daiichi, along with the Japanese government were consistently exposed telling blatant lies or misrepresentations of the truth. Now, in an attempt to mitigate the public relations fallout that has ensued from their deceit of the Japanese people and those around the globe, the government is devoting roughly 70 million yen or $913,000 to combating what they bill “erroneous information” about the disaster.

The contract was awarded to a Tokyo advertising company who will likely continue their efforts until March. While the agency will not demand that original postings be taken down or that the poster’s identity be revealed; they will identify the allegedly “erroneous information” in order to carry “correct information” on their website.

So-called experts will be consulted and the “correct information” will be presented in a question-and-answer format. While the government presents this as nothing more than an attempt to present accurate information to the public, the people of Japan, including lawyers, do not see it as such an innocent proposal.

The anonymous Fukushima I Nuke Plant worker whom I featured before several times tweets on the information, yet to be substantiated, related by an independent journalist Kota Kinoshita on his blog on August 15. Mr. Kinoshita related the information only because he had heard the similar information from his government source. What is that information? That there is steam gushing out of cracks on the ground, and that there are 6 locations that exceed 10 sieverts/hr radiation. 1. About "steam gushing out from cracks on the ground": In Mr. Kinoshita's blog:

It was early August, around 9PM. A worker at Fukushima I Nuke Plant sent an email to his local contact, saying "Steam gushing out of cracks on the ground. The area is foggy with steam, and the workers evacuated temporarily. Some kind of reaction may be occurring underground. Watch out for radiation level depending on the wind direction".

From the information source within the government, "I've heard about the steam coming out from the ground, and I am concerned". Fukushima worker's tweet:

Since March 11, 2011 it has been reported that YouTube videos containing footage or comments unfavorable to Tokyo Electric Power Company (TEPCO) or the Japanese government have been removed within several hours of their posting. Examples of offending YouTube videos include excerpts of TV shows with controversial comments like footage showing smoke emitted from the nuclear reactors, and an ex-TEPCO employee speaking on his Fukushima experiences. Likewise, Twitter accounts with too much content regarding nuclear power and radiation issues have been disrupted.

On June 17, 2011 the Japanese Parliament passed “The Computer Network Monitoring Law” . Prof. Ibusuki of Seijo Univ. Law Dept. comments that “The Computer Network Monitoring Law will enable the police to monitor anyone’s internet activity without restriction.” Although this appears, on the surface, to be beneficial when targeting cyber-attacks, some Japanese commentators are suggesting that the law is un-Constitutional.

“Nuclear Power Safety Regulation Publicity Project” stipulates that, “The Contractor is required to monitor blogs on nuclear power and radiation issues as well as Twitter accounts (monitoring tweets is essential) around the clock, and conduct research and analysis on incorrect and inappropriate information that would lead to false rumors, and to report such internet accounts to the Agency. The “Contractor” is required to keep the Agency well informed on the internet accounts and keywords used in the blogs and Twitter accounts that are posting incorrect and inappropriate information. The Contractor is required to maintain sufficient number of personnel for around-the-clock monitoring. The Contractor is required to submit reports on internet accounts via CDR.” The document, however, does not state that blogs or Twitter accounts, which run afoul of METI’s guidelines, are to be banned or frozen.” The question is, will METI draw the line at “clarifying” erroneous information, or will it act to clamp down and suppress sources of information that it finds inconvenient?

As efforts to end the nuclear disaster at Tokyo Electric Power Co.'s Fukushima No. 1 nuclear power plant drag on, it is important for the central and local governments to step up their efforts to closely examine the health conditions of people concerned and to decontaminate areas contaminated by radiation.

The people who have been most affected by radiation from the Fukushima plant are workers, both from Tepco and from subcontractors, who have been trying to bring the radiation-leaking plant under control. In the nation's history, these workers rank second only to the victims of the atomic bombings of Hiroshima and Nagasaki in terms of their exposure to radiation, therefore the possibility cannot be ruled out that they will develop cancer. Tepco and the central government must do their best to prevent workers' overexposure to radiation and take necessary measures should workers become overexposed to radiation. It is of great concern that little has been disclosed regarding the conditions of the workers at the Fukushima No. 1 nuclear power plant. Tepco and the central government should disseminate information on the actual working conditions of these people, even if such information seems repetitious and includes what they regard as minor incidents. People are forgetful. They need to be informed. Such information will help raise people's awareness about the issue of radiation and its impact on health.

It must not be forgotten that exposure to radiation has long-term effects on human health. In the Hiroshima and Nagasaki atomic bombings, the number of leukemia cases started to increase among bombing survivors two years after the bombs were dropped. In the case of the 1986 Chernobyl accident, thyroid cancer began to appear among children several years after the disaster happened. Particular attention should be paid to the health of children. In view of these facts, it is logical that the Fukushima prefectural government has developed a program to monitor the health of all residents in the prefecture, who number about 2 million, throughout their lifetime. It has also started examining the thyroids of some 360,000 children who are age 18 or younger. Detailed and long-term area-by-area studies should be carried out to record cancer incidences. In August, the Nuclear Safety Commission of Japan estimated that the Fukushima accidents released a total of 570,000 terabecquerels of radioactive substances, including some 11,000 terabecquerels of radioactive cesium 137.

I wrote on Monday November 14 about the paper by the international team of scientists on cesium-137 deposition simulation after the Fukushima I Nuclear Power Plant accident, from March 20 to April 19.In the English paper that I linked, there was a map of cesium-137 deposition simulation in much wider area of Japan, which I showed in the post.But then, in the press release by Nagoya University (one of the scientists is from this university), I realized I should have linked the different map of cesium-137 deposition simulation on land and on the ocean. A whole lot of radioactive materials may have fallen on the ocean, the Pacific Ocean AND the Japan Sea. (Remember, this is a simulation map, not the actual measurement.)

Looking at the map, I don't think I want to eat anything from the Pacific Ocean. Or the Japan Sea. Abalone fishing just started in Iwate Prefecture.By the way, the paper and the researchers were criticized heavily on Twitter a couple of days ago (it still continues) from other researchers in Japan. Their beef was that the researchers of the paper withheld this information from the public when it could have made the difference in determining the government policy or in alerting more people on the possibility of much wider radiation contamination. Instead, the researchers waited for the peer review in the very prestigious scientific venue (the National Academy of Sciences of the United States) to be finished and the paper published. Some say the researchers had the temerity to say in their Nagoya University press release on November 15, "We request that the information in the paper not be used to spread a new set of "baseless rumors" [on the contamination]."

Well, as we have seen, they are not alone. There have been a lot of Japanese researchers who have done what they just did, announcing what could have been the vital information after their papers got accepted by foreign peer-reviewed magazines. I personally know one, whose radiation survey result in locations in Fukushima might have made a significant difference. But the researcher is still sitting on the data (though he was careless enough to put it on his website for a long time), because his paper is being peer-reviewed.But then there are researchers like Professor Yukio Hayakawa of Gunma University, who released the radiation contour map he created soon after the accident, to much ridicule from the establishment initially. And Professor Bin Mori of Tokyo University, who published his world-first discovery of bio-concentration of radioactive silver in spider on his personal blog, and allowed me to spread the information both in Japanese and in English so that more people know about it as soon as possible.

Nuclear Phase-Out Related articles, background features and opinions about this topic. Print E-Mail Feedback 07/13/2011   Phase-Out Hurdle Germany Could Restart Nuclear Plant to Plug Energy Gap dapd Germany might need to switch a nuclear power plant back on. Germany's energy agency is warning that one of the German reactors mothballed in the wake of Fukushima may have to be restarted to make up for possible power shortages this winter and next. Berlin is also   using money earmarked for energy efficiency to subsidize coal-fired power plants. For reasons of data protection and privacy, your IP address will only be stored if you are a registered user of Facebook and you are currently logged in to the service. For more detailed information, please click on the "i" symbol. Nuclear energy, as has become abundantly clear this year, has no future in Germany. For once the government, the parliament and the public all agree: Atomic reactors in the country will be history a decade from now. Before that can happen, however, the country has to find alternate power sources. In fact, amid concerns that supply shortages this winter could result in temporary blackouts, Germany's Federal Network Agency on Tuesday indicated that one of the seven reactors shut down in the immediate wake of the Fukushima nuclear disaster in Japan could be restarted this winter to fill the gap . "The numbers that we currently have indicate that one of these nuclear energy plants will be needed," said agency head Matthias Kurth on Tuesday in Berlin. He said that ongoing analysis has indicated that fossil fuel-powered plants would not prove to be adequate as a backup.

Nuclear Phase-Out Related articles, background features and opinions about this topic. Print E-Mail Feedback 07/13/2011   Phase-Out Hurdle Germany Could Restart Nuclear Plant to Plug Energy Gap dapd Germany might need to switch a nuclear power plant back on. Germany's energy agency is warning that one of the German reactors mothballed in the wake of Fukushima may have to be restarted to make up for possible power shortages this winter and next. Berlin is also   using money earmarked for energy efficiency to subsidize coal-fired power plants. For reasons of data protection and privacy, your IP address will only be stored if you are a registered user of Facebook and you are currently logged in to the service. For more detailed information, please click on the "i" symbol. Nuclear energy, as has become abundantly clear this year, has no future in Germany. For once the government, the parliament and the public all agree: Atomic reactors in the country will be history a decade from now. Before that can happen, however, the country has to find alternate power sources. In fact, amid concerns that supply shortages this winter could result in temporary blackouts, Germany's Federal Network Agency on Tuesday indicated that one of the seven reactors shut down in the immediate wake of the Fukushima nuclear disaster in Japan could be restarted this winter to fill the gap

Nuclear Phase-Out Related articles, background features and opinions about this topic. Print E-Mail Feedback 07/13/2011  Phase-Out Hurdle Germany Could Restart Nuclear Plant to Plug Energy Gap dapd Germany might need to switch a nuclear power plant back on. Germany's energy agency is warning that one of the German reactors mothballed in the wake of Fukushima may have to be restarted to make up for possible power shortages this winter and next. Berlin is also using money earmarked for energy efficiency to subsidize coal-fired power plants.

The impacts on the ocean of releases of radionuclides from the Fukushima Dai-ichi nuclear power plants remain unclear. However, information has been made public regarding the concentrations of radioactive isotopes of iodine and cesium in ocean water near the discharge point. These data allow us to draw some basic conclusions about the relative levels of radionuclides released which can be compared to prior ocean studies and be used to address dose consequences as discussed by Garnier-Laplace et al. in this journal.(1) The data show peak ocean discharges in early April, one month after the earthquake and a factor of 1000 decrease in the month following. Interestingly, the concentrations through the end of July remain higher than expected implying continued releases from the reactors or other contaminated sources, such as groundwater or coastal sediments. By July, levels of 137Cs are still more than 10 000 times higher than levels measured in 2010 in the coastal waters off Japan. Although some radionuclides are significantly elevated, dose calculations suggest minimal impact on marine biota or humans due to direct exposure in surrounding ocean waters, though considerations for biological uptake and consumption of seafood are discussed and further study is warranted.

there was no large explosive release of core reactor material, so most of the isotopes reported to have spread thus far via atmospheric fallout are primarily the radioactive gases plus fission products such as cesium, which are volatilized at the high temperatures in the reactor core, or during explosions and fires. However, some nonvolatile activation products and fuel rod materials may have been released when the corrosive brines and acidic waters used to cool the reactors interacted with the ruptured fuel rods, carrying radioactive materials into the ground and ocean. The full magnitude of the release has not been well documented, nor is there data on many of the possible isotopes released, but we do have significant information on the concentration of several isotopes of Cs and I in the ocean near the release point which have been publically available since shortly after the accident started.

We present a comparison of selected data made publicly available from a Japanese company and agencies and compare these to prior published radionuclide concentrations in the oceans. The primary sources included TEPCO (Tokyo Electric Power Company), which reported data in regular press releases(3) and are compiled here (Supporting Information Table S1). These TEPCO data were obtained by initially sampling 500 mL surface ocean water from shore and direct counting on high-purity germanium gamma detectors for 15 min at laboratories at the Fukushima Dai-ni NPPs. They reported initially results for 131I (t1/2 = 8.02 days), 134Cs (t1/2 = 2.065 years) and 137Cs (t1/2 = 30.07 years). Data from MEXT (Ministry of Education, Culture, Sports, Science and Technology—Japan) were also released on a public Web site(4) and are based on similar direct counting methods. In general MEXT data were obtained by sampling 2000 mL seawater and direct counting on high-purity germanium gamma detectors for 1 h in a 2 L Marinelli beaker at laboratories in the Japan Atomic Energy Agency. The detection limit of 137Cs measurements are about 20 000 Bq m–3 for TEPCO data and 10 000 Bq m–3 for MEXT data, respectively. These measurements were conducted based on a guideline described by MEXT.(5) Both sources are considered reliable given the common activity ratios and prior studies and expertise evident by several Japanese groups involved in making these measurements. The purpose of these early monitoring activities was out of concern for immediate health effects, and thus were often reported relative to statutory limits adopted by Japanese authorities, and thus not in concentration units (reported as scaling factors above “normal”). Here we convert values from both sources to radionuclide activity units common to prior ocean studies of fallout in the ocean (Bq m–3) for ease of comparison to previously published data.

A leading biophysicist has cast a critical light on the government’s reassurances that Americans were never at risk from Fukushima fallout, saying “we really don’t know for sure.”

When radioactive fallout from Japan’s nuclear disaster began appearing in the United States this spring, the Obama Administration’s open-data policy obligated the government to inform the public, in some detail, what was landing here.

Covering the story, I watched the government pursue what appeared to be two strategies to minimize public alarm:

The Japanese government seems to be "instructing" TEPCO not to release certain information in English.TEPCO submitted the report to its regulatory agency Nuclear and Industrial Safety Agency (NISA) "on the measures to continue water injection into reactors of Units 1 to 3 at Fukushima Daiichi Nuclear Power Station" on August 3. It's in Japanese only, and it may or may not be translated into English.According to TEPCO:We have provided a Japanese press release version of the instruction document received from NISA. However, at this time we have reserved the right not to provide an English version due to potential misunderstandings that may arise from an inaccurate rendering of the original Japanese text. We may provide the English translation that NISA releases in our press releases. However, in principle we would advise you to visit the NISA website for timely and accurate information.(From TEPCO's English press release on August 3 explaining why they are releasing the information only in Japanese.)The 34-page Japanese report is here.

The report talks about the fuel inside the Reactor Pressure Vessels;It talks about the reactors as if they were sound;It states that zirconium will start to interact with water at a certain temperature (1,200 degrees Celsius).

Most likely, there is no fuel left inside the RPVs at Fukushima I Nuke Plant. Even if there is, it is not fuel any more but "corium" - fuel, control rods, instruments, whatever inside the RPV, melted together. TEPCO has already admitted that there are holes in the RPV, and holes in the Containment Vessels. There is no zirconium left because there is no cladding left.

This week, the U.S. Department of Energy (DOE) re-launched its website, Energy.gov, to provide tools to help individuals and businesses better understand how to save energy and money. You can type your zip code into the site and get hyper-local information about your city, county and state, including information on tax credits, rebates and energy saving tips.

The site presents DOE data visually using the open source MapBox suite of tools, and localized data and maps can be shared or embedded on any website or blog. Other data sets the DOE is mapping include alternative fuel locations and per capita energy usage. Anyone can now compare how his state’s energy usage compares with others across the country. In addition to making the data more palatable for the public, the DOE is offering open data sets for others to use.

Our goal is simple — to improve the delivery of public services online. We’re using government data to go local in a way that’s never been possible before. We’re connecting the work of the Energy Department with what’s happening in your backyard,” says Cammie Croft, senior advisor and director of new media and citizen engagement at the DOE. “We’re making Energy.gov relevant and accessible to consumers and small businesses in their communities.”

a new market research report is available in its catalogue: Nuclear Energy Quarterly Deals Analysis - M&A and Investment Trends, Q2 2011 http://www.reportlinker.com/p0285100/Nuclear-Energy-Quarterly-Deals-Analysis---MA-and-Investment-Trends-Q2-2011.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=Nuclear_energy Nuclear Energy Quarterly Deals Analysis - M&A and Investment Trends, Q2 2011

Summary GlobalData's "Nuclear Energy Quarterly Deals Analysis - M&A and Investment Trends, Q2 2011" report is an essential source of data and trend analysis on Mergers and Acquisitions (M&As) and financings in the nuclear energy market. The report provides detailed information on M&As, equity and debt offerings, private equity and venture capital (PE/VC) and partnership transactions recorded in the nuclear energy industry in Q2 2011. The report provides detailed comparative data on the number of deals and their value in the last five quarters, categorized by deal types, segments and geographies. The report also provides information on the top advisory firms in the nuclear energy industry. Data presented in this report is derived from GlobalData's proprietary in-house Nuclear Energy eTrack deals database and primary and secondary research.

Scope - Analyze market trends for the nuclear energy market in the global arena - Review of deal trends in uranium mining & processing, equipment and services, and power generation markets - Analysis of M&A, Equity/Debt Offerings, Private Equity, Venture Financing and Partnerships in the nuclear energy industry - Summary of nuclear energy deals globally in the last five quarters - Information on top deals happened in the nuclear energy industry - Geographies covered include – North America, Europe, Asia Pacific, South & Central America, and Middle East & Africa - League Tables of financial advisors in M&A and equity/debt offerings. This includes key advisors such as Morgan Stanley, Credit Suisse, and Goldman Sachs

Nuclear regulators already have “sufficient information and knowledge” to deal with earthquake risks at existing U.S. reactors and don’t need to wait for a broader review, a safety advocate said. The Nuclear Regulatory Commission developed seismic rules for new plants in 1996 and has since approved preliminary construction for proposed nuclear units at a Southern Co. plant in Georgia and certified an early reactor design by Toshiba Corp.’s Westinghouse Electric unit, according to comments filed with the agency today by David Lochbaum, director of the Nuclear Safety Project at the Cambridge, Massachusetts-based Union of Concerned Scientists.

“If the NRC truly lacks sufficient information about seismic hazards and how safety at nuclear power reactors is affected, then the agency cannot responsibly have issued early site permits and certified new reactor designs,” he said. The NRC is in the process of evaluating seismic hazards in the central and eastern U.S. in response to updated geologic information. By the end of this year, the agency plans to develop an earthquake probability model for reactor owners to use and may require all U.S. plants to review their seismic risks within the next two years.

The NRC has said “repeatedly” the broad seismic review “deals with an issue that fails to present an immediate safety concern,” Scott Burnell, an agency spokesman, said in an e- mail. Existing plants are built to “safely withstand the earthquakes at their sites,” he said. Earthquake Protections The NRC is weighing requirements to bolster plant protections against earthquakes and floods in the wake of the nuclear disaster in Japan caused by a March temblor and tsunami that led to radiation leaks and meltdowns at Tokyo Electric Power Co.’s Fukushima Dai-Ichi plant.