POWER FULL EARTHQUAKE KARACHI

KARACHI: A powerful earthquake of magnitude 7.2 shook southwestern Pakistan on Wednesday, jolting residents of cities as far apart as New Delhi and Dubai, but doing little damage in the sparsely populated region.
The quake was more than 80 km underground, close to the town of Dalbandin in Balochistan province, near the Afghan and Iranian frontiers, the US Geological Survey (USGS) said.
Akbar Durrani, interior secretary of Balochistan province, said there were no reports of casualties.
“There has been partial damage to house in villages near Dalbandin but there were no casualties,” he told Reuters.
Naeem Shah, head of Dalbandin police, said he had no reports of any injuries or deaths.
“There were no human losses,” Shah said. “The walls of a few houses and offices collapsed but there are no reports of any casualties.”
The USGS said the epicentre of the quake, which struck at 1:23 a.m., was 55 km west of Dalbandin, a town of about 15,000 people, and at a depth of 83 km.
Poor communications delayed reports from the remote area but despite the strength of the shock, its depth seems to have limited damage. The USGS had first said the earthquake was much shallower.
People in India’s northwestern border state of Rajasthan said cracks appeared in the walls of rural dwellings.
US forces in Afghanistan were unaffected by the quake, according to preliminary reports from the US military.
People flee their houses
In Quetta, the capital and largest city in Baluchistan, 330 km northeast of the epicentre, a woman died at a hospital from a heart attack following the quake, hospital officials said.
In the major Pakistani port of Karachi, 400 km away, people rushed from their homes as the quake hit.

“I felt like my bed was shaking. I got up and ran to check the children,” said Masooma Rizvi. “It was very scary. I have never felt anything like this before.”

The Pacific Tsunami Center said the quake had not triggered a tsunami in the Indian Ocean.

A major quake of this magnitude, if at a shallow depth and close to population centres, is capable of causing widespread and heavy damage. Pakistan is still reeling from devastating floods last year that left more than 10 million people homeless.

At least 160 people were killed when a 6.4-magnitude earthquake struck Balochistan, about 60 km north of Quetta, in October 2008.

In 2005, a 7.6 magnitude quake 95 km northeast of Islamabad killed more than 70,000 people.

A 7.7-magnitude earthquake in 1935 hit Quetta, killing between 30,000 and 60,000 people, making it one of the deadliest quakes to hit South Asia in recorded history..

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.”