Japan historik earthquakes tsunami and volcanoes :

The Japanese archipelago is located in an area where several continental and oceanic plates meet. This is the cause of frequent earthquakes and the presence of many volcanoes and hot springs across Japan. If earthquakes occur below or close to the ocean, they may trigger tidal waves (tsunami).
Historic earthquakes
Many parts of the country have experienced devastating earthquakes and tidal waves in the past. The Great Kanto Earthquake, the worst in Japanese history, hit the Kanto plain around Tokyo in 1923 and resulted in the deaths of over 100,000 people.
In January 1995 a strong earthquake hit the city of Kobe and surroundings. Known as the Southern Hyogo Earthquake or Great Hanshin Earthquake, it killed 6,000 and injured 415,000 people. 100,000 homes were completely destroyed and 185,000 were severely damaged.
Earthquake measurement
The Japanese "shindo" scale for measuring earthquakes is more commonly used in Japan than the Richter scale to describe earthquakes. Shindo refers to the intensity of an earthquake at a given location, i.e. what people actually feel at a given location, while the Richter scale measures the magnitude of an earthquake, i.e. the energy an earthquake releases at the epicenter.
The shindo scale ranges from shindo one, a slight earthquake felt only by people who are not moving, to shindo seven, a severe earthquake. Shindo two to four are still minor earthquakes that do not cause damage, while objects start to fall at shindo five, and heavier damage occurs at shindo six and seven.
During and after an earthquake
Falling objects, toppling furniture and panic present the greatest dangers during an earthquake. Try to protect yourself under a table or doorway. Do not run outside, and try to remain as calm as possible. If you are in the streets, try to find protection from glass and other objects that may fall from surrounding buildings.
After a strong earthquake, turn off ovens, stoves and the main gas valve. Then listen to the radio or television for news. In coastal areas beware of possible tidal waves (tsunami) while in mountainous areas beware of possible land slides.
Japan is one of the most seismically active countries in the world, with 108 active volcanoes, according to National Geographic. Japan rests on the Ring of Fire, which is "a series of volcanoes and fault lines that roughly circle the Pacific Ocean."
The United States has seen some activity underground recently as well. In Seattle, Wash., a magnitude 4.5 earthquake shook the area, but no damage was reported. Alaska, meanwhile, is paying attention to its Mount Redoubt volcano, which is showing signs of a possible eruption.
Scientific American wrote, "The so-called ring of fire edging the Pacific is known to be highly active. So it's no surprise that said ring is jolting Seattle residents awake and putting denizens of Anchorage on notice of an imminent eruption from the redoubtable Mount Redoubt."

Japan's nuclear crisis

 SENDAI: Japan's nuclear crisis escalated Tuesday as two more blasts and a fire rocked a quake-stricken atomic power plant, sending radiation up to dangerous levels.
Radiation around the Fukushima No.1 plant on the eastern coast had "risen considerably", Prime Minister Naoto Kan said, and his chief spokesman announced the level was now high enough to endanger human health.
In Tokyo, some 250 kilometres (155 miles) to the southwest, authorities also said that higher than normal radiation levels had been detected in the capital, the world's biggest urban area, but not at harmful levels.
Kan warned people living up to 10 kilometres (six miles) beyond a 20 km (12-mile) exclusion zone around the nuclear plant to stay indoors.
The fire, which was later reportedly extinguished, was burning in the plant's number-four reactor, he said, meaning that four out of six reactors at the facility are now in trouble.
The official death toll has risen to 2,414, police said Tuesday, but officials say at least 10,000 are likely to have perished.
The crisis at the ageing Fukushima plant has escalated daily after Friday's quake and tsunami which knocked out cooling systems.
On Saturday an explosion blew apart the building surrounding the plant's number-one reactor. On Monday, a blast hit the number-three reactor, injuring 11 people and sending plumes of smoke billowing into the sky.
Early on Tuesday a blast hit the number-two reactor. That was followed shortly after by a hydrogen explosion which started a fire at the number-four reactor.
Hashimoto said supermarkets are open but shelves are completely empty. "Many children are sick in this cold weather but pharmacies are closed. Emergency relief goods have not reached evacuation centres in the city.
Everyone is anxious and wants to get out of town. But there is no more petrol. We are afraid of using a car as we may run out of petrol."
The UN's nuclear watchdog, the International Atomic Energy Agency, said Tokyo had asked for expert assistance in the aftermath of the quake which US seismologists are now measuring at 9.0-magnitude, revised up from 8.9.

But the IAEA's Japanese chief Yukiya Amano moved to calm global fears that the situation could escalate to rival the world's worst nuclear crisis at Chernobyl in the Ukraine in 1986.
Officials have already evacuated 210,000 people in the exclusion zone around the crippled plant.
At one shelter, a young woman holding her baby told public broadcaster NHK: "I didn't want this baby to be exposed to radiation. I wanted to avoid that, no matter what."
Further north in the region of Miyagi, which took the full brunt of Friday's terrifying wall of water, rescue teams searching through the shattered debris of towns and villages have found 2,000 bodies.
And the Miyagi police chief has said he is certain more than 10,000 people perished in his prefecture.
Millions have been left without water, electricity, fuel or enough food and hundreds of thousands more are homeless and facing harsh conditions with sub-zero temperatures overnight, and snow and rain forecast.
Tokyo stocks, which were punished Monday when the markets reopened, sending indexes around the world sliding, plummeted another 12 percent by early afternoon on Tuesday.
Leading risk analysis firm AIR Worldwide said the quake alone would exact an economic toll estimated at between $14.5 billion and $34.6 billion (10 billion to 25 billion euros) -- even leaving aside the effects of the tsunami.

POWERFULL EARTH QUAKE AND TSUNAMI JAPAN

TOKYO: A massive 8.9 magnitude quake hit northeast Japan on Friday, causing many injuries, fires and a four-metre (13-ft) tsunami along parts of the country's coastline.
There were several strong aftershocks and a warning of a 10-metre tsunami following the quake, which also caused buildings to shake violently in the capital Tokyo.
Public broadcaster NHK showed flames and black smoke billowing from a building in Odaiba, a Tokyo suburb, and bullet trains to the north of the country were halted.
Black smoke was also pouring out of an industrial area in Yokohama's Isogo area.  An overpass, location unknown, appeared to have collapsed into the water.
Passengers on a subway line in Tokyo screamed and grabbed other passengers' hands. The shaking was so bad it was hard to stand.
Hundreds of office workers and shoppers spilled into Hitotsugi street, a shopping street in Akasaka in downtown Tokyo.
Household goods ranging from toilet paper to clingfilm were flung into the street from outdoor shelves in front of a drugstore.
Crowds gathered in front of televisions in a shop next to the drugstore for details. After the shaking from the first quake subsided.
The U.S. Geological Survey earlier verified a magnitude of 7.9 at a depth of 15.1 miles and located the quake 81 miles east of Sendai, on the main island of Honshu. It later upgraded it to 8.8.
A police car drove down Hitotsugi Street, lights flashing, announcing through a bullhorn that there was still a danger of shaking.
The Tokyo stock market extended its losses after the quake was announced. The central bank said it would do everything to ensure financial stability.
Japan's northeast Pacific coast, called Sanriku, has suffered from quakes and tsunamis in the past and a 7.2 quake struck on Wednesday. In 1933, a magnitude 8.1 quake in the area killed more than 3,000 people. Last year fishing facilities were damaged after by a tsunami caused by a strong tremor in Chile.
Earthquakes are common in Japan, one of the world's most seismically active areas. The country accounts for about 20 percent of the world's earthquakes of magnitude 6 or greater.
Meanwhile, officials of fishermen's unions in Iwate and Miyagi prefectures said they began conducting on-the-spot examinations to check the extent of damage inflicted by the Wednesday quake on their members' farming facilities like those for oysters and scallops.
The Thursday morning quake brought the number of quakes felt in Japan since Wednesday to more than 30.

world climate change

NASA’s announcement this year – that 2010 ties 2005 as the warmest year in the 131-year instrumental record – made headlines. But, how much does the ranking of a single year matter? Global temperature records in close agreement, despite subtle differences
Multiple institutions monitor global surface temperatures. Despite subtle differences in the ways the scientists perform their analyses, these four widely referenced records show remarkable agreement. Credit: NASA Earth Observatory

Groups of scientists from several major institutions – NASA’s Goddard Institute for Space Studies (GISS), NOAA's National Climatic Data Center (NCDC), the Japanese Meteorological Agency and the Met Office Hadley Centre in the United Kingdom – tally data collected by temperature monitoring stations spread around the world and make an announcement about whether the previous year was a comparatively warm or cool year. The availability of and access to climate change information remains insufficient, according to many of the world's leading financial institutions. A pioneering study launched  confirms the increasing financial relevance of climate change and the fact that insurers and lenders need better information regarding the physical and economic impacts of the world's changing weather patterns.

Financial service providers and their customers are increasingly affected by the impacts of climate change, such as extreme weather events. Moreover, the survey shows that insurers, reinsurers, lenders, and asset managers expect these kinds of risks to increase in the future.

Given that financial institutions are able to influence their clients and investee companies across all sectors of the economy, they can play a key role in accelerating the implementation of adaptation measures by the private sector.

But in order for the sector to manage climatic risks affecting their business portfolios and to give the best possible advice to their customers, financial institutions need access to applied information such as climate change predictions, modelling, analysis, and interpretation. Such information needs to be appropriate to the duration of contracts, the regions where customers hold assets or undertake operations and the hazards that are material to the operations of borrowers, investees, and the insured.
Not all that much, emphasizes James Hansen, the director of NASA’s Goddard Institute for Space Studies (GISS) in New York City. In the GISS analysis, for example, 2010 differed from 2005 by less than 0.01°C (0.018 °F), a difference so small that the temperatures of these two years are indistinguishable, given the uncertainty of the calculation.
Meanwhile, the third warmest year -- 2009 -- is so close to 1998, 2002, 2003, 2006, and 2007, with the maximum difference between the years being a mere 0.03°C, that all six years are virtually tied.
Even for a near record-breaking year like 2010 the broader context is more important than a single year. “Certainly, it is interesting that 2010 was so warm despite the presence of a La Niña and a remarkably inactive sun, two factors that have a cooling influence on the planet, but far more important than any particular year’s ranking .

worlds climate change now

NASA said on January 13, 2011 that a particularly strong La Nina weather pattern of cooler water temperatures is fueling heavy rains and floods in Australia, Sri Lanka and Brazil. “This La Niña has strengthened for the past seven months, and is one of the most intense events of the past half century,” said Climatologist Bill Patzert of NASA/JPL. Australia’s third-largest city Brisbane was turned into a “war zone” with whole suburbs under water and infrastructure smashed as the worst flood in decades hit 30,000 properties. Officials said, the number of people killed in Sri Lanka’s monsoon flooding and mudslides have risen to 27 with more than a million people still displaced by the devastating disaster. In Brazil, authorities have stated that more than a thousand people have been left without homes and 71 lost their lives in Teresopolis alone.

Climate change in world natural disaster in world

Climate Change has likely intensified the monsoon rains that have triggered record floods in Australia’s Queensland state, scientists said on Wednesday, with several months of heavy rain and storms still to come.

But while scientists say a warmer world is predicted to lead to more intense droughts and floods, it wasn’t yet possible to say if climate change would trigger stronger La Nina and El Nino weather patterns that can cause weather chaos across the globe.

“I think people will end up concluding that at least some of the intensity of the monsoon in Queensland can be attributed to climate change,” said Matthew England of the Climate Change Research Centre at the University of New South Wales in Sydney.

The Queensland floods have killed 16 people since the downpour started last month, inundating towns, crippling coal mining and are now swamping the state’s main city of Brisbane.
The rains have been blamed on one of the strongest La Nina patterns ever recorded. La Nina is a cooling of ocean temperatures in the east and central Pacific, which usually leads to more rain over much of Australia, Indonesia and other parts of Southeast Asia.
This is because the phenomena leads to stronger easterly winds in the tropics that pile up warm water in the western Pacific and around Australia. Indonesia said on Wednesday it expected prolonged rains until June.
Weather Switch
The Pacific has historically switched between La Nina phases and El Ninos, which have the opposite impact by triggering droughts in Australia and Southeast Asia.

“The first thing we can say with La Nina and El Nino is it is now happening in a hotter world,” he told Reuters, adding that meant more evaporation from land and oceans, more moisture in the atmosphere and stronger weather patterns.
“So the El Nino droughts would be expected to be exacerbated and also La Nina floods because rainfall would be exacerbated,” he said, though adding it would be some years before any climate change impact on both phenomena might become clear.
He said the current La Nina was different because of the warmest ocean temperatures on record around Australia and record humidity in eastern Australia over the past 12 months.
Prominent US climate scientist Kevin Trenberth said the floods and the intense La Nina were a combination of factors.
He pointed to high ocean temperatures in the Indian Ocean near Indonesia early last year as well as the rapid onset of La Nina after the last El Nino ended in May.

He said a portion, about 0.5C, of the ocean temperatures around northern Australia, which are more than 1.5C above pre-1970 levels, could be attributed to global warming.
“The extra water vapor fuels the monsoon and thus alters the winds and the monsoon itself and so this likely increases the rainfall further,” said Trenberth, head of the Climate Analysis Section at the National Center for Atmospheric Research in        Boulder, Colorado.
“So it is easy to argue that 1 degree Celsius sea surface temperature anomalies give 10 to 15 percent increase in rainfall,” he added.
Some scientists said it was still too soon to draw a definite climate change link to the floods.
“It’s a natural phenomenon. We have no strong reason at the moment for saying this La Nina is any stronger than it would be even without humans,” said Neville Nicholls of Monash University in Melbourne and president of the Australian Meteorological and Oceanographic Society.
But he said global atmospheric warming of about 0.75C over the past half century had to be having some impact.
“It has to be affecting the climate, regionally and globally. It has to be affecting things like La Nina. But can you find a credible argument which says it’s made it worse? I can’t at the moment.”