Category: Japan

  • NOAA: Tsunami Event Modeling- March 11, 2011

    NOAA: Tsunami Event Modeling- March 11, 2011

    The Honshu tsunami was generated by a Mw 8.9 earthquake (38.322°N, 142.369°E ), at 05:46 UTC, 130 km (80 miles) E of Sendai, Honshu, Japan (according to the USGS). In approximately 25 minutes, the tsunami was first recorded at DART® buoy 21418. Forecast results shown below were created with the NOAA forecast method using MOST model with the tsunami source inferred from DART® data.

    Tsumani

    The graphics display forecast results, showing qualitative and quantitative information about the tsunami, including tsunami wave interaction with ocean floor bathymetric features, and neighboring coastlines. Tsunami model amplitude information is shown color-coded according the scale bar. 

     

     

     

    Modeling Results

    • Propagation animation on YouTube
      • on ftp atftp://ftp.pmel.noaa.gov/tsunami/honshu/and also here
    • Model amplitudes calculated with the  MOST forecast model. Filled colors show maximum computed tsunami amplitude in cm during 24 hours of wave propagation. Black contours show computed tsunami arrival time. Alternate plots below:
      • high resolution maximum amplitude plot
      • high resolution maximum amplitude plot with no labels on tide gages
      • energy plot with NOAA logo and no labels
      • NOAA Environmental Visualization laboratory
      • Maximum amplitude plot for Google Earth (KMZ

    Model and DART® buoy data / tide gage data comparison

    • Comparison of the March 11, 2011 Honshu tsunami recorded at sea-level gages in the Pacific
      and along U.S. coastlines with forecasts obtained from high-resolution forecast model runs.
      The forecast models were run in real time before the tsunami reached the locations shown.
      The model data for Hawaii and the U.S. West Coast show 6 to 9 minute early arrival (less than
      1.5% error accumulated during the propagation simulation). The plots show model data for
      those locations with time shifted later for the comparison purposes. (see References, below).
    • Forecast results comparison with sea level data composite plots:
      • U.S. West Coast
      • Alaska
      • Hawaii and Oceania
    • Comparison of model data with DART® data

    References:

    Tang, L., V. V. Titov, and C. D. Chamberlin (2009), Development, testing, and applications of site-specific tsunami inundation models for real-time forecasting, J. Geophys. Res., 114, C12025, doi:10.1029/2009JC005476. [PDF version ]
    Titov, V.V. (2009): Tsunami forecasting. Chapter 12 in The Sea, Volume 15: Tsunamis, Harvard University Press, Cambridge, MA and London, England, 371–400.

    Wei, Y., E. Bernard, L. Tang, R. Weiss, V. Titov, C. Moore, M. Spillane, M. Hopkins, and U. Kânoğlu (2008): Real-time experimental forecast of the Peruvian tsunami of August 2007 for U.S. coastlines. Geophys. Res. Lett., 35, L04609, doi: 10.1029/2007GL032250. [PDF Version]

    Disclaimer: These modeling results are based on a preliminary tsunami source definition and preliminary bathymetric and topographic data that is not fully verified and has known inaccuracies. Therefore the model results are subject to revision.


  • Second Explosion Fears At Japan Nuclear Plant

    Second Explosion Fears At Japan Nuclear Plant

    A second explosion could hit the nuclear power plant damaged in Japan’s devastating earthquake, officials have warned.

    Japanese army

    Chief cabinet minister Yukio Edano warned of a hydrogen blast in reactor three at the Daiichi plant in Fukushima, but insisted it could withstand it as reactor one did on Saturday.

    The first explosion destroyed the building housing reactor one, but did not prompt a major radiation leak.

    Mr Edano said it was highly likely a partial meltdown had occurred in one reactor of the Fukushima plant, and that authorities were working on the assumption that one may occur in another.

    Operators are now attempting to reduce the risk of meltdown at a total of three of the affected reactors at Daiichi by injecting sea water into them.

    Tokyo Electric Power Company (TEPCO) said it was preparing to release some steam to relieve pressure in the reactor at the plant – 150 miles (241km) north of Tokyo.

    This plan would release a small amount of radiation.

    “We can stabilise the reactor if we take the air out and pump water in the vessel properly,” Mr Edano said.

    “At the risk of raising further public concern, we cannot rule out the possibility of an explosion.

    “If there is an explosion, however, there would be no significant impact on human health.”

    The government has insisted radiation levels are low following Saturday’s explosion, saying the blast had not affected the reactor’s core container.

    Some 22 people have showed signs of possible exposure to radiation at the Fukushima plant.

    But officials from the Japan Nuclear and Industrial Safety Agency say up to 160 may have suffered radiation exposure.

    A 12-mile (19km) radius has been imposed on the Fukushima Daiichi plant with an estimated 170,000 people already having been evacuated.

    Sky News’ Holly Williams, in Fukushima, said: “The experts I’m speaking to say that at the moment, as long as people are evacuated from the area, there is very little risk to humans.

    “But they say the big risk here is fire. If either of these reactors caught fire, that would spread that radiation over a much larger area, which is obviously the concern of Japanese authorities at this moment.”

    A six-mile exclusion zone is also in place around the nearby Fukushima Daini station, with an estimated 30,000 people told to leave the area.

    The Sky News

     

     

     

     

  • China’s Defense Budget Draws Concern

    China’s Defense Budget Draws Concern

    BEIJING—Japan expressed concern over China’s planned double-digit rise in defense spending this year, highlighting trepidation in the region about China’s escalating military and economic might after a week of fresh Chinese territorial confrontations with Japan, South Korea and the Philippines.

    Chinese army

    Japan Foreign Minister Seiji Maehara urged the Chinese government to be more transparent about how it planned to use its newfound military firepower, saying, “Whether it should be regarded as offensive or defensive would require a close look.”

    The comments came after China announced plans early Friday to increase its defense budget by 13% this year and as the week’s clashes built on concerns that China will increasingly use its escalating military power to assert its territorial claims in the region

    Such fears have prompted many of its neighbors to to shore up defense ties with the U.S. and beef up their own militaries, threatening to push Asia into a new arms race.

    China expects to spend 601.1 billion yuan ($91.4 billion) on defense in 2011, up from 533.4 billion yuan last year, Li Zhaoxing, spokesman for the National People’s Congress, told a news conference ahead of the start of the legislature’s annual session on Saturday.

    The projected rise is faster than last year’s 7.5% increase—the slowest clip in decades—but is significantly slower than the roughly 19% annual growth in years before 2010.

    The headline figure does not, however, include key items such as arms imports and the program to develop a stealth fighter and an aircraft carrier, according to foreign military experts who estimate that China’s real defense spending is far higher.

    Mr. Li said the military budget would be used for purposes including “appropriate armament development,” training and human resources, while stressing that it remained relatively low as a proportion of China’s GDP and overall budget, and dismissing concerns that it threatened neighboring countries.

    “China’s defense spending is relatively low in the world,” he said. “Every bit of China’s limited military strength will be used for safeguarding national independence, sovereignty and territorial integrity. He reiterated China’s oft-repeated refrain that its efforts “will not pose a threat to any country.”

    On Wednesday, Japan scrambled fighter jets to chase off two Chinese military planes which it said flew within 34 miles of disputed islands in the East China Sea, which are known as Senkaku in Japan and as Diaoyu in China.

    Japanese government spokesman Yukio Edano said Japan would not protest formally as the Chinese planes did not leave international airspace, but he also voiced concern over China’s growing military power and said Japan would monitor the situation. China’s Foreign Ministry didn’t immediately respond to a request for comment.

    Relations between Asia’s two biggest economies plunged to their lowest point in years in September following collisions near the islands between two Japanese coast guard patrol boats and a Chinese fishing vessel.

    In December, Japan, which in 2010 was surpassed by China as the world’s No. 2 economy, revised its national defense guidelines, which were drawn up during the Cold War, to shift focus away from Russia and toward the emerging threat from China.

    China’s more forceful stance on territorial issues has also alarmed other countries in the region.

    On Wednesday, the Philippines deployed two war planes to protect oil explorers who complained that they were being harassed by two Chinese patrol boats in a disputed area of the South China Sea.

    The Philippine government demanded an explanation Friday for the incident at Reed Bank near the Spratly Islands, which are claimed by China, Brunei, Malaysia, Taiwan, Vietnam and the Philippines.

    Chinese Embassy spokesman Ethan Sun reiterated his country’s claim to the Spratly Islands and adjacent waters, but said Beijing was committed to maintaining peace and stability in the area and resolving disputes through peaceful negotiations, according to the Associated Press.

    South Korea’s Coast Guard said Friday it seized two Chinese fishing boats and their crews on Thursday after they were found fishing illegally in South Korea’s Exclusive Economic Zone, 64 miles southwest of Keokrulbiyeol island in the west sea.

    During the process, one South Korean policeman was hurt by a weapon wielded by Chinese fishermen, and one Chinese fisherman was shot in his leg, the coast guard said.

    China’s Foreign Ministry didn’t immediately respond to a request for comment on that incident.

    Chinese officials and academics have toned down their rhetoric this year in an apparent bid to address concerns that China is becoming increasingly assertive on territorial claims, and that it plans to challenge U.S. military supremacy in the Asia-Pacific region.

    In January, China jolted the region with a test flight of a new stealth jet fighter, indicating that China is further along in using the advanced technology than previous Pentagon statements had suggested.

    China is also developing an antiship ballistic missile that could threaten U.S. naval vessels in the Asia-Pacific region, where the U.S. has long been dominant.

    However, Mr. Li pointed out that China’s military spending accounted for only about 6% of China’s national budget, which he said was lower than in recent years—and well below the level of the U.S.

    The defense budget “will see some increase, but the ratio of spending to GDP is quite low—lower than in many countries,” he added.

    The Wall Street Journal

     

  • Turkey nuke decision due by March

    Turkey nuke decision due by March

    Kyodo News

    Japan and Turkey agreed Friday to reach a “certain conclusion” in about three months on whether Japan will build a nuclear power plant on the Black Sea coast, an industry ministry official said.

    nn20101225a4aBuilding ties: Economy, Trade and Industry Minister Akihiro Ohata and visiting Turkish Energy and Natural Resources Minister Taner Yildiz field questions at a Friday news conference in Tokyo. KYODO PHOTO

    The agreement was reached during talks in Tokyo between Economy, Trade and Industry Minister Akihiro Ohata and visiting Turkish Energy and Natural Resources Minister Taner Yildiz, who also signed a memorandum on civil nuclear cooperation in the development of human resources and other areas.

    At a joint news conference after the talks, Ohata pitched Japan’s nuclear power technologies as safe and earthquake-resistant, while the Turkish minister seemed eager to seek cooperation.

    “We are expecting that the construction of a nuclear power plant in Turkey could be achieved under the cooperation of both the public and private sectors of the two countries,” Yildiz said.

    Japan has been trying to export its nuclear power technologies. But there is no guarantee negotiations with Turkey will go smoothly.

    via Turkey nuke decision due by March | The Japan Times Online.

  • Turkey, Japan in Exclusive Talks for Nuclear Plant

    Turkey, Japan in Exclusive Talks for Nuclear Plant

    By Tsuyoshi Inajima

    (Updates minister’s comments in third paragraph.)

    Dec. 23 (Bloomberg) — Turkey is holding exclusive talks with Japan to build its second nuclear power plant after failing to reach an agreement with South Korea.

    Turkey aims to conclude a deal with Japan in three months, Energy Minister Taner Yildiz said today in an interview in Tokyo. Yildiz is due to hold talks with Toshiba Corp., Tokyo Electric Power Co. and Itochu Corp.

    South Korea and Turkey failed to reach an agreement to build a nuclear power plant in Sinop on the Black Sea coast because of “differences in issues including electricity sales price,” South Korea’s Ministry of Knowledge Economy said Nov. 13. Japan, which won a nuclear plant contract in Vietnam in October, plans to spur economic growth by exporting more nuclear reactors and technology products.

    “We have some targets to recover the time we have lost” to build the nuclear plant, Yildiz said. “Within three months, main frameworks should be determined,” including financing, treasury, insurance, partnerships and power tariffs, he said.

    Yildiz said his visit to Japan comes after officials from Toshiba and the Japanese government held two rounds of technical meetings in Turkey on the project. “They told us their first impression is quite positive,” he said.

    Turkey received an offer from Japan to build a nuclear plant in the country, CNBC-e television said on Oct. 7, citing Yildiz. The offer is an “aggressive one,” the Istanbul-based news channel cited the minister as saying then.

    ‘More Aggressive’

    “Major players including Japan are getting more aggressive in the global nuclear market after they were beaten by South Korea last year to the United Arab Emirates’ $18.6 billion order,” said Shin Min Seok, an analyst at Daewoo Securities Co. in Seoul.

    South Korea emerged as a competitor in the global nuclear market after Korea Electric Power Corp. beat General Electric Co. and Areva SA in December last year to the U.A.E. order.

    Yildiz and his Japanese counterpart Akihiro Ohata are due to sign a memorandum of understanding on nuclear power cooperation tomorrow, Japan’s trade ministry said in a statement yesterday.

    On Dec. 25, the Turkish minister is scheduled to visit Tokyo Electric’s Kashiwazaki Kariwa nuclear power plant, the world’s biggest atomic power station, according to an e-mailed statement by the ministry. Tokyo Electric officials including Executive Vice President Sakae Muto will meet Yildiz at the plant in northern Japan, company spokesman Norio Takahashi said by telephone today.

    Calls to the offices of the spokesmen for Toshiba and Itochu weren’t answered as businesses and markets are shut for a public holiday today. An Itochu spokesman didn’t immediately respond to a voice message seeking comment left on his mobile phone.

    Russia and Turkey signed a contract in May to build Turkey’s first nuclear power plant with four reactors, at a cost of about $20 billion after more than a year of negotiations. Russia’s Rosatom Corp. will operate the plant in Akkuyu for 60 years, Russian Deputy Prime Minister Igor Sechin said Dec. 15.

    “My expectation and hope is that the cost will not be higher than numbers we have been talking with Russia and South Korea,” Yildiz said today.

    –With assistance from Shinhye Kang in Seoul. Editors: Amit Prakash, John Viljoen.

    To contact the reporter on this story: Tsuyoshi Inajima in Tokyo at tinajima@bloomberg.net.

    To contact the editor responsible for this story: Amit Prakash at aprakash1@bloomberg.net.

    via Turkey, Japan in Exclusive Talks for Nuclear Plant – BusinessWeek.

  • Turkish Airlines to increase Istanbul-Osaka flights from March

    Turkish Airlines to increase Istanbul-Osaka flights from March

    thy slogoTurkish Airlines will increase flights between Istanbul and Osaka to five round trips from late March to attract more business users.

    There are currently four round-trip flights per week connecting Istanbul Ataturk Airport with Kansai International Airport near Osaka.

    The airline also said the departure time of flights leaving Narita airport, east of Tokyo, to Istanbul six days a week will be moved up by nearly three hours to noon, also from late March, allowing more passengers to make connection flights to Europe within the same day.

    Tuba Toptan Yavuz, head of Turkish Airlines’ Japan office, said at a press conference in Tokyo that the carrier is hoping to increase flights between Narita and Istanbul to one round-trip flight every day.

    Source: Kyodo News