Japan – Page 11 – Shamskm: A site to exchange knowledge and solutions

Japan Earthquake Appears to Increase Quake Risk Elsewhere in the Country

By Guest PostMay 26, 2011Environmentaftershocks, boso, coulomb stress triggering, earthquake, geological evidence, honshu island, izu islands, Japan, japan sea, jian lin, kyoto university, magnitude, mainshocks, microearthquakes, mount, nagano, normal faults, ross s stein, sanriku hokobu, sendai, stress, toda, tohoku earthquake, tohoku mainshock, tokyo area, tsunami, usgs, whoi, woods hole oceanographic institution

Japan’s recent magnitude 9.0 earthquake, which triggered a devastating tsunami, relieved stress along part of the quake fault but also has contributed to the build up of stress in other areas, putting some of the country at risk for up to years of sizeable aftershocks and perhaps new main shocks, scientists say.

After studying data from Japan’s extensive seismic network, researchers from the Woods Hole Oceanographic Institution (WHOI), Kyoto University and the U.S. Geological Survey (USGS) have identified several areas at risk from the quake, Japan’s largest ever, which already has triggered a large number of aftershocks. (more…)

After Japan Nuclear Power Plant Disaster: How Much Radioactivity in the Oceans?

By Guest PostMay 21, 2011Environmentfukushima plant, Japan, marine radionuclides, nuclear power plant, radiochemical situation, radionuclides in seawater

National Science Foundation awards rapid-response grants to establish ocean radionuclide levels from Fukushima

Among the casualties of the March 11, 2011, earthquake and resulting tsunami in Japan was the country’s Fukushima Daiichi nuclear power plant. (more…)

Radiation Level in Seawater off Nuclear Plant “Fukushima-1” Exceeded 1250 Times

By Guest PostMarch 26, 2011Environmentfukushima daiichi nuclear plant, Japan, millisievert, radiation levels, radioactive iodine, radioactive water, reactor, seafood, seawater

Levels of radioactive iodine in seawater just offshore of the embattled Fukushima Daiichi nuclear plant spiked to more than 1,250 times higher than normal, Japan’s nuclear and industrial safety agency said Saturday.

Samples taken Friday morning from a monitoring station 330 meters off the coast were significantly higher than results from the previous morning, when the level was 104 times above normal, according to CNN International. (more…)

Japan Worst-case Scenario Unlikely to Cause Catastrophic Radiation Release

By Guest PostMarch 17, 2011Environmentboiling water reactor, Chernobyl, chest x-rays, explosion, fuel rods, fukushima plant, Japan, john lee, meltdown, nuclear reactor, nuclear reactors, power blackouts, radioactivity, release of harmful radiation, thomas downer, three mile island accident, united states, worst case scenario

ANN ARBOR, Mich.— While exposed spent fuel rods at the failing nuclear reactors in Japan pose new threats, the worst-case scenario would still be unlikely to expose the public to catastrophic amounts of radiation, says a University of Michigan nuclear engineering professor who is an expert on this particular kind of reactor.

“For the public, I don’t believe it would be much higher than two additional chest x-rays,” said John Lee, a professor in the Department of Nuclear Engineering and Radiological Sciences, citing the results of the Three Mile Island accident. (more…)

Japan Quake May Have Shortened Earth Days, Moved Axis

By Guest PostMarch 15, 2011Environment, Scienceaxis, Chile, complex model, earth mass, earth rotation, earthquake, figure axis, gravitational attraction, Japan, japan earthquake, japan quake, length of earth day, march 11, microseconds, richard gross, sumatran earthquake, theoretical calculation, united states geological survey

The March 11, magnitude 9.0 earthquake in Japan may have shortened the length of each Earth day and shifted its axis. But don’t worry-you won’t notice the difference.

Using a United States Geological Survey estimate for how the fault responsible for the earthquake slipped, research scientist Richard Gross of NASA’s Jet Propulsion Laboratory, Pasadena, Calif., applied a complex model to perform a preliminary theoretical calculation of how the Japan earthquake-the fifth largest since 1900-affected Earth’s rotation. His calculations indicate that by changing the distribution of Earth’s mass, the Japanese earthquake should have caused Earth to rotate a bit faster, shortening the length of the day by about 1.8 microseconds (a microsecond is one millionth of a second). (more…)

NASA Shows Topography of Tsunami-Damaged Japan City

By Guest PostMarch 13, 2011Environmentcoastal plain, earthquake, Japan, miyagi prefecture, NASA, national geospatial intelligence agency, nga, ohu mountains, pacific ocean, radar image, sendai, shuttle radar topography mission, srtm, subduction plate boundary, topography, tsunami, u s geological survey

The topography surrounding Sendai, Japan is clearly visible in this combined radar image and topographic view generated with data from NASA’s Shuttle Radar Topography Mission (SRTM) acquired in 2000. On March 11, 2011, a magnitude 8.9 earthquake struck offshore about 130 kilometers (80 miles) east of Sendai, the capital city of Japan’s Miyagi Prefecture, generating a tsunami that devastated the low-lying coastal city of about 1 million residents.

The city is centered in the image and lies along the coastal plain between the Ohu Mountains and the Pacific Ocean. The eastern part of the city is a low-lying plains area, while the city center is hilly (the city’s official elevation is about 43 meters, or 141 feet). Sendai’s western areas are mountainous, with its highest point being Mt. Funagata at an elevation of about 1,500 meters (4,921 feet) above sea level. (more…)

Tsunami Waves Crash Into Japan’s North-east After Powerful Quake

By PravdaMarch 11, 2011Environment, Generalcoastal parts, earthquake, epicenter, friday, fukushima prefecture, highways, iwate prefecture, Japan, magnitude of the earthquake, mariana islands, miyagi, north east, onahama city, plumes of smoke, quake, richter scale, tokyo, tsunami warning, tsunami wave

The government of Japan has provided a report about the damage caused by a strong earthquake which rocked the north-east of the country on Friday, March 11. The Associated Press reports with reference to Japanese television that the tsunami wave, triggered by the quake, caused significant destruction in the northern part of the country.

The magnitude of the earthquake, which took place in Japan on Friday, was measured 8.8 on Richter scale. Quakes still continue in the capital, Tokyo. The epicenter of the quake was located 382 kilometers to the north-east off Tokyo, at the depth of 10 kilometers. (more…)

Smartphone Adoption Continues to Grow in Japan

By Guest PostFebruary 25, 20112 commentsTechnologyapple, Comscore, comscore mobilens, Google, google android, Japan, japan kk, japanese, Microsoft, mobile media market, mobile usage, palm platform, rim, shin imamura, smartphone adoption, Technology

*comScore Releases Latest Mobile Industry Insights from its MobiLens Product*

Tokyo, Japan, February 25, 2011 – comScore Japan KK, a wholly owned subsidiary of comScore, Inc., a leader in measuring the digital world, today released the latest insights into mobile usage in Japan from its comScore MobiLens product. The report found that Japanese users are continuing to adopt smartphone devices, with Apple and Google platforms seeing significant increases in subscribers. (more…)

Tag Archives: Japan